Because I just have, the MAF (Mass Air Flow) senors were BLACK, I'm surprised they even worked!
Quick spray with some carb cleaner (removed the rubber seal first) and they are gleaming, and hopefully a lot more efficient again.
Does anybody know if Toyota ever check this as part of a service? Wouldn't surprise me if they didn't.... s:roll: :roll: s:roll:
Hi Sean,
If you would kindly enlighten me where the MAF is I will take a butchers and make sure it's sparkling clean/super efficient prior to a dyno check this week (providing H&S are ready for me by Saturday). What else does a similar job to carb cleaner?
Regards
s:D :D s:D
Roger, see http://www.spydermagazine.com/2002/March/maf_clean/maf_clean.htm, if you are going for a dyno run it is well worth doing, as is resetting the ECU after the exhaust is installed (this may be done by H&S anyway, if they disconnect the battery for the install).
As far as I know, carb cleaner is the only thing recommended to use as a cleaner; I bought a new can today from Halfords.
Hey slacey, thanks for the info, really handy. How often are you supposed to clean the MAF. s:? :? s:?
Quote from: "cartell"Hey slacey, thanks for the info, really handy. How often are you supposed to clean the MAF. s:? :? s:?
No problem, I'd recommend every 12 months with the standard airbox, every 6 months or so if you are running an induction kit (as I am).
At the end of the day, as long as you are careful, regular cleaning won't damage the sensor wires, so as often as you feel necessary.
it says use a carb cleaner Sean so what do you use ?????
Quote from: "Buster"it says use a carb cleaner Sean so what do you use ?????
Errrr.. carb cleaner? That's what it said in my first post s:wink: :wink: s:wink:
boom boom ! s:oops: :oops: s:oops:
what make do you use???
Quote from: "Slacey"As far as I know, carb cleaner is the only thing recommended to use as a cleaner; I bought a new can today from Halfords.
come on buster - get with it mate! s:wink: :wink: s:wink: s:lol: :lol: s:lol: s:lol: :lol: s:lol:
oh s:cry: :cry: s:cry: sorry guys im a bit spaced out today finished my summer holidays now so it's the first day back at uni and i havent quite got my head screwed on properly yet
just help me out guys LOL s:wink: :wink: s:wink:
DOH!
Hold on, I'll have a look.....
.
.
.
.
.
.
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It's Wynns 'Fuel Injection Intake & Carb Cleaner', it was the only carb cleaner I could find in Halfords, was £4.49 for a large can.
As a follow up, I cleaned the MAF and reset the ECU at the same time; bloody hell, it feels like a new car today! s:shock: :shock: s:shock:
Idles perfectly, and throttle response is now much improved. It's amazing what a difference such minor maintenance can make. Only pain was having to set up my H/U again s:roll: :roll: s:roll:
resetting the ECU!!!! just disconect the positive from the battery YEAH ?????
do you just spray it on ???? and it evapotaes off!
When I was looking for carb cleaner, I noticed some cans said "Do not use for cleaning AFM/MAF" or something alike...I think it's worth reading the labels. No idea what they would do, if anything, but there must be a reason for those texts.
Quote from: "Buster"resetting the ECU!!!! just disconect the positive from the battery YEAH ?????
Yep, that's exactly what I did, leave for 20 minutes or so and then reconnect.
Quote from: "Buster"do you just spray it on ???? and it evapotaes off!
Again, yes - but remember to remove the rubber 'O' ring first, and don't put it back until all of the cleaner has evaporated.
Quote from: "Tem"When I was looking for carb cleaner, I noticed some cans said "Do not use for cleaning AFM/MAF" or something alike...I think it's worth reading the labels. No idea what they would do, if anything, but there must be a reason for those texts.
I too remember seeing this before, but the can of Wynn's I bought had no such warning, I did check as well!
Hey all,
I plan on cleaning mine this weekend....already downloaded/printed the directions by iMR2 (on SpyderMagazine.com). I probably won't reset my ECU because the last time I had to disconnect the battery for an extended amount of time, it locked up the security connection on my Eclipse stereo face and had to drive it without the use of my radio/CD/DVD player for a few weeks until I could drive it to the stereo dealer....doh!!!
Hope I see some difference after cleaning!
Later!
Slacey
I think the point that Buster was tryingto make (or maybe it was an attempt at a joke s:roll: :roll: s:roll: ) was that you described it as carb cleaner. That confused him, no doubt s:lol: :lol: s:lol: In a later post the can description included "injector". I'll pop to the local Max Muppet store and pick some up. The sensor on my car doesn't look too dirty.
s:D :D s:D s:D :D s:D
arh see now im confussed agian s:wink: :wink: s:wink: lol
slacey
Bought a can of Wynns yesterday. There's enough at £4.49 to last 20 years s:!: :!: s:!: Extracted the unit again at lunch-time, remembering to take off the o-ring. I left it until last night to test any difference. All I can say is:-
BLOODY HELL s:!: :!: s:!: s:!: :!: s:!: s:!: :!: s:!: s:!: :!: s:!: s:!: :!: s:!: s:!: :!: s:!:
A quick blat down our local dual-carriageway produced 90mph in third at 6000 revs. I couldn't really push it in 4th or 5th because of other cars. Perhaps I ought to think again about track or airfield days.
Thanks once again for the tip, it certainly is worthwhile keeping a regular check on the MAF's condition.
Regards
s:D :D s:D s:D :D s:D
Glad to see it wasn't just my imagination then!! s:D :D s:D
Quote from: "Roger H"A quick blat down our local dual-carriageway produced 90mph in third at 6000 revs.
Deja Vu. Speed and Revs are linked via a constant ratio. Cleanliness of your MAF, type of fuel used and other things like that won't change what speed you get for a certain revs.
So, did you get better acceleration Roger?
The only thing I really noticed with mine was the incredible improvement of the throttle response, and it did seem to pull harder.
phil4
Yes, better acceleration. Just as slacey described.
Clean MAF, K&N filter pad, Optimax and cooler air. Anything else and the car will be airborne s:!: :!: s:!: s:!: :!: s:!:
Regards
s:D :D s:D s:D :D s:D
you won't want that exhaust then :-) :-) :-)
Off topic but are you going down there on Saturday?
According to his sig he is... s:wink: :wink: s:wink:
markiii
Back at the office for a few minutes.
Of course I still want it s:!: :!: s:!: s:!: :!: s:!: I've been waiting sodding months for the GB to get to this stage s:lol: :lol: s:lol: s:lol: :lol: s:lol: Full tank of Optimax and raring to go s:!: :!: s:!:
I've just had the pre-exhaust-fit dyno run done at Bromsgrove. I haven't seen all the data in print-out form yet but the bhp at the fly-wheel exceeds the official figures. After the re-run tomorrow all the data will emailed to me, so watch this space s:!: :!: s:!: s:!: :!: s:!: s:!: :!: s:!: s:!: :!: s:!:
Just for pulling my plonker I'll have 2 more windscreen stickers please.
Regards
s:D :D s:D s:D :D s:D
I've noticed that when pulling away the throttle response has been getting more and more sluggish – sort of like a turbo kicking in, but not good. Very frustrating when you want to get away as quickly as possible.
Could this be because the MAF is dirty? Or something else?
I'll certainly give it a clean anyhow. How often do you Apexi Intake folks clean the filter. And how? IIRC is a lifetime filter.
Cheers Guys and Gals
DP
Quote from: "Darth Paul"I've noticed that when pulling away the throttle response has been getting more and more sluggish – sort of like a turbo kicking in, but not good. Very frustrating when you want to get away as quickly as possible.
Could this be because the MAF is dirty? Or something else?
This is how mine was feeling; cleaning the MAF cured the problem - the car feels like it has just had a full service!
Quote from: "Darth Paul"I'll certainly give it a clean anyhow. How often do you Apexi Intake folks clean the filter. And how? IIRC is a lifetime filter.
We had a discussion on this last week, no-one really seems to know what to do - I am going to order another filter (if I can find out the right bleedin' dimension to order) and then have a go at cleaning the old one - if it works then great, if not at least I have a spare to fit.
Quote from: "Darth Paul"I've noticed that when pulling away the throttle response has been getting more and more sluggish – sort of like a turbo kicking in, but not good.
Sluggish is not a word I'd normally associate with my turbo kicking-in car s:wink: :wink: s:wink: s:) :) s:)
If the apexi is anything like the K&N 57i kit then they are easy as pie to clean. Take it off, give it a wash from inside out (so the dirt does not get pushed into the filter), let it try, re-oil and slap it back on.
I did my K&N about once a year.
One thing I am certain of Kris, and that is that the Apexi is NOT an oiled filter, it's dry. The cleaning I will attempt will be a 'bath' in mildly soaped water, thorough rinse and leave to dry completely.
Assuming of course I can get a new one! s:evil: :evil: s:evil:
Quote from: "mph"Quote from: "Darth Paul"I've noticed that when pulling away the throttle response has been getting more and more sluggish – sort of like a turbo kicking in, but not good.
Sluggish is not a word I'd normally associate with my turbo kicking-in car s:wink: :wink: s:wink: s:) :) s:)
That's why I said "but not good". s:wink: :wink: s:wink:
DP
Right, over lunch I nipped to Halfords and bought the cleaner. Took the MAF off and yes, by gum, it WAS dirty. VERY dirty. The sensors were COATED in crud. s:shock: :shock: s:shock: s:? :? s:?
Cleaned it, put it back in and removed the positive terminal from the battery to re-set the ECU.
Now all I have to do is wait 'till 5:30 to see if it's made any difference...
DP
Quote from: "Darth Paul"Now all I have to do is wait 'till 5:30 to see if it's made any difference...
Oh trust me DP, it WILL have made a difference!! s:D :D s:D
yep, the car will have vanished since without the battery connected the alram isn't working :-) :-) :-)
Oh. I didn't know to re-set the ECU, but still got a big improvement.
s:D :D s:D
Quote from: "markiii"yep, the car will have vanished since without the battery connected the alram isn't working :-) :-) :-)
Oh what wit. s:roll: :roll: s:roll: s:wink: :wink: s:wink:
DP
dont think i will re-set the ECU coz of my alram and audio ! so pleased to know it made an improvement with out resertting it s:lol: :lol: s:lol:
Quote from: "Buster"dont think i will re-set the ECU coz of my alram and audio ! so pleased to know it made an improvement with out resertting it s:lol: :lol: s:lol:
No, it's not essential, I did it just for the sake of it! s:roll: :roll: s:roll:
This is for Buster
Bless his little heart
Aoccdrnig to rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae.
The rset can be a total mses and you can sitll raed it wouthit a
porbelm.
Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe.
Fcuknig amzanig huh?
Pete s:oops: :oops: s:oops:
Shame on you Pete, not checking on the forum enough, are you? s:wink: :wink: s:wink:
This 'research' has been posted before!
see im a jenous realy s:lol: :lol: s:lol:
BLIMEY!!! I did this last night. I took out the MAF and had a look and it didn't actually look that dirty (with 15K on the clock, I would have expected worse). But I cleaned it with the Wynns stuff, left it to dry, diconnected the battery in the meantime and then refitted about 20mins later. Didn't take it out for a drive straight away though as it was getting on and there were a few things I had to do. But this morning........
CRIKEY! I AM impressed. Smoother running of the engine, nicer pickup....the car just seems more.....well.....sorted.
Will do again in 6 months and see what happens, but nice one Slacey. Good bit of advice that I would NEVER have thought of. Cheers buddy!!! s:D :D s:D s:D :D s:D s:D :D s:D s:D :D s:D
Just outta interest... anyone still have the stock Sony HU? Does that require a code when you disconnect the battery for 20mins?
Phil, I have the stock unit and it was the first thing I tried!
It did confuse me a little as it did refer to the default FM 87.5 setting but after pressing my preset buttons for the radio, they were all still there, so I haven't had to do any retuning or anything. Which I thought was quite impressive!
Quote from: "John Woodward"Will do again in 6 months and see what happens, but nice one Slacey. Good bit of advice that I would NEVER have thought of. Cheers buddy!!! s:D :D s:D s:D :D s:D s:D :D s:D s:D :D s:D
I'm certainly not the first to do this, but I'm pleased you got good results from doing it. I hope all these comments spur the rest of you on to check this small maintenance task!
ok, i've got the maf off, but how the bloody hell are you supposed to get anything down the tube to clean them with!!?? s:? :? s:? Have i misread something and it unscrews where the rubber ring is?
or am i just supposed to spray stuff down there and wait for it to dry?
that would be my prefered option as they look a little thin and fragile to be messing with!!
You got it, don't touch in there just spray it and let it dry.
Regarding the gains you lot are feeling by cleaning the MAF i do think that the resetting of the ECU is contributing too.My car had been feeling a little hesitant on WOT but yesterday i was faced with a flat battery, this obviously reset the ECU, since i recharged it the car has felt amazing again, no hesitation at all.I appreciate that my e-manage is altering the ECU settings,so the ECU is trying to correct it more, but i for one will be resetting the ECU every month or so.
Yeah, I am sure you are right. I think it might be a combination of the two though. I did both, so can't comment too much on each separately as they are no longer mutually exclusive, but whatever reason, the running of the car DOES seem a lot more responsive.......
Who cares if you get the benefits anyway!!! s:D :D s:D
Well, whatever the combined effects, it shows a definate benefit - I'm going to clean and reset every 3 months or so now.
Reckon that this might have some kinda long term detrimental effect? I am guessing not, but I was wondering what peoples opinion on this was? Interested, as I would like to go down the same route as Slacey on this one if the benefits are as good as they are.........
just gonna make sure with the installers that disconnecting the battery wont mean any grief for me with my alarm/immob , then doing it tomorrow, cant wait, mine's 2.5 yrs old, 34k, and I doubt it's had it done before. Not that there's anything wrong with the current performance as far as I know, but if it can be improved with 2 such simple tasks then hey, wahoo!! I'm excited like a kid at Xmas!
I'm keen to do it too as my MAF looked a bit dirty when I installed my Apexi.
But I've an import with a (Toyota) Panasonic H/U and if I can't find my code then I could be stuffed if I disconnect the battery to reset the ECU. s:oops: :oops: s:oops:
Thats the thing, you don't really feel an performance drop as it's so gradual.But when you reset everthing and clean the MAF it's instantly back to how it was, so you feel an noticable improvement.
Comer just pull the ECU fuse instead of disconnecting the battery.
Quote from: "Comer"But I've an import with a (Toyota) Panasonic H/U and if I can't find my code then I could be stuffed if I disconnect the battery to reset the ECU. s:oops: :oops: s:oops:
I had the same Panasinic single DIN in mine when delivered, it doesn't use a code system - the fact that the face is removable is it's security.
I removed it and sold it to a friend who put it in his Pug, works OK and no code required.
Quote from: "John Woodward"Reckon that this might have some kinda long term detrimental effect? I am guessing not, but I was wondering what peoples opinion on this was? Interested, as I would like to go down the same route as Slacey on this one if the benefits are as good as they are.........
I reckon the only thing that could go wrong is that if you were clumsy, you could break one of the sensor wires, but then you shouldn't actually be touching them anyway. Oh, one other could be that if you don't remove the rubber 'O' ring, the rubber itself could degrade and break up if exposed to the carb cleaner.
Quote from: "mr-s_turbo"Comer just pull the ECU fuse instead of disconnecting the battery.
Cheers for this tip Turb, me being a complete ignoramus in these matters, will the fuse need to be left out for an amount time, like when disconnecting the battery?
And all this ECU caperings, is there any chance of doing any damage by messing with this?
Yeah thanks to the rapid info from MR2-Turbo and Sean I've got a little job for the morning s:wink: :wink: s:wink:
Right folks, may I suggest we all be really careful when we do this....
(It is easy though, don't let this put you off)
The cost of a replacement MAF from Toyota is £67.54 + VAT s:shock: :shock: s:shock:
Don't forget; DO NOT physically touch the wires with anything other than the cleaning spray.
Jesus!!! 65 quid? A bit of plastic and three wires? Christ, what a rip off......
Did remove the rubber ring, but I am worried that doing this repeatedly over time might have some effect on it. I hope not as it is not actually seated that tightly, but stretching it and pulling it over the lip may cause micro-tears in it, eventually leading to a much higher wear rate. Stil, the benefits seem worth it........ s:lol: :lol: s:lol:
The ECU resets instantly the power is took away, but, unplug the fuse for atleast 30seconds is the best bet.No damage to the ECU can come from this at all.
As Slacey says take care, it is really easy though.
Quote from: "John Woodward"Did remove the rubber ring, but I am worried that doing this repeatedly over time might have some effect on it.
I got the impression from my parts guy that the 'O' ring was a sepearte part, and I'm sure we are talking pennies for that!
Oh, well if that is the case then, every 3 months it is!!! s:D :D s:D
Sean, you wanna bring your cleaner with you on the 18th and see if mine needs doing? s:wink: :wink: s:wink: s:D :D s:D
Quote from: "mr-s_turbo"The ECU resets instantly the power is took away, but, unplug the fuse for atleast 30seconds is the best bet
Cheers mate, that's what i wanted to hear!
Dont suppose you know which fusebox it's in do you?! this is sheer laziness on my part, and I'm guessing the one next the engine, but obviously it aint necessarily so
p.s. just bought the cleaner, have to have a few beers after work or's I won't be able to sleep tonight!
And I'm sure the difference is not
that great but I've only had the car about 3 months, and it's 2.5 yrs old, so I'm thinking it'll be noticeable
Quote from: "Stevo"Quote from: "mr-s_turbo"The ECU resets instantly the power is took away, but, unplug the fuse for atleast 30seconds is the best bet
Cheers mate, that's what i wanted to hear!
Dont suppose you know which fusebox it's in do you?! this is sheer laziness on my part, and I'm guessing the one next the engine, but obviously it aint necessarily so
p.s. just bought the cleaner, have to have a few beers after work or's I won't be able to sleep tonight!
And I'm sure the difference is not that great but I've only had the car about 3 months, and it's 2.5 yrs old, so I'm thinking it'll be noticeable
I believe there's more than one fuse – check out the manual. So I decided the battery route was easiest. s:lol: :lol: s:lol:
DP
Quote from: "krisclarkuk"Sean, you wanna bring your cleaner with you on the 18th and see if mine needs doing? s:wink: :wink: s:wink: s:D :D s:D
Certainly! Just remind me nearer the time!
Since you guys will no doubt want to eat before driving all the way home and I expect your going to be passing me on your way back to the M1, anyone fancy a mini meet for dinner and a beer in the evening?
Quote from: "markiii"Since you guys will no doubt want to eat before driving all the way home and I expect your going to be passing me on your way back to the M1, anyone fancy a mini meet for dinner and a beer in the evening?
Sounds good to me.... s:D :D s:D
Sounds awfully good to me too! s:D :D s:D
Can anyone confirm that the stock Sony h/u (pre 2003) doesn't require a code? I can't see any mention of it.
Otherwise, anyone manage to locate the correct fuse for the ECU. Again, I could RTFM myself, but if anyone knows....
Cheers.
Quote from: "zud"Otherwise, anyone manage to locate the correct fuse for the ECU.
Job done, nice one, bit gutted that the MAF was spotless anyway, but took the ECU fuse (the fusebox next to the engine) out and replaced, will test later, well tomorrow now cos the Hammers and England are on so I'm out on the piss, yay!
One little thing, put the fuse and cleaned-MAF back in their places, put me screwdrivers away, go back to the car, put the key in, turned, NUFFINK!
Imagine my delight when i realised that the only prob was that my immobiliser had kicked in, Terence Fuckwit would've been proud!
Come on the England s:D :D s:D
Guess which muppet put WD40 on the exhaust studs ready for the H&S fitting whilst cleaning the MAF and resetting the ECU?
Yep it was me. So when I took off up the dual carriageway for a blast I wondered what the burning smell was. When I got back home it was pretty clear that the car was smoking!!!
Hehehe... mines just done that... though I've not cleaned the MAF or reset the ECU. Just sprayed WD40 on the studs, and got lots of smoke pouring off after. Quite amusing.
I'm not the only one to do that then s:lol: :lol: s:lol: On the MAF cleaning, mine was cleaner than I thought and the car's behaviour was unchanged apart from slightly higher rpm at idle. But everyone's cars will have MAFs of differing condition so not everyone will notice a major difference.
Mine seemed reasonably clean, I've not drive it yet, but the car started ok (quite important that one). I pulled the battery for 20minutes, rather than the fuse, as there seemed to be many ECU fuses.
I cleaned my MAF last night reset the ECU and shook out the K&N still runs good but the idle speed has dropped by 100 rpm (-700rpm) seems ok just a bit lumpy at traffic lights. s:roll: :roll: s:roll:
Quote from: "petal_skipraider"I cleaned my MAF last night reset the ECU and shook out the K&N still runs good but the idle speed has dropped by 100 rpm (-700rpm) seems ok just a bit lumpy at traffic lights. s:roll: :roll: s:roll:
Strange, my idle improved immensly after performing the clean / reset, it is now stable where before it would wander and sometimed nearly stall s:? :? s:?
That is strange mne feels as if it could stall when breaking hard to a stop with the lights and radio on then it recovers to about 700 rpm where it used to be about 800 what dose yours idle at? I dont think theres anything wrong with it but i have noticed a difference? s:? :? s:?
Quote from: "petal_skipraider"That is strange mne feels as if it could stall when breaking hard to a stop with the lights and radio on then it recovers to about 700 rpm where it used to be about 800 what dose yours idle at? I dont think theres anything wrong with it but i have noticed a difference? s:? :? s:?
Mine idles at around ~800rpm constantly, I'm running an Apexi which I thought may affect it, but doesn't seem to.
Haven't managed to get hold of some Wynns yet to do my MAF, but after reading some of the other posts in this thread, I decided to re-set the ECU anyway. Didn't notice any performance issues before doing this, but response since certainly appears sharper ( I don't think it's just wishful thinking ). Can't quantify / qualify that exactly but, as someone else said, it just seems more "sorted".
I have a couple of questions relating to this that I hope someone might help me with ( afraid I'm a mechanical numpty ).
Right at the start of this thread, it was suggested to Roger that he would benefit from resetting the ECU after his H&S exhaust fit. I doubt very much whether this was done when my TTE was installed. Would the fact I've now done this ( 5 months after install ) have made any difference ?
What does the act of resetting the ECU force the car "management" to do that provides such benefits ?
I've tried searching the forum but can't find anything that actually explains what happens ?
Sorry if these questions are dumb, but I would really appreciate it if any of you have any thoughts ( even if it's to tell me not to be so bloody stupid !! ).
Ally.
Quote from: "AllyY"What does the act of resetting the ECU force the car "management" to do that provides such benefits ?
I've tried searching the forum but can't find anything that actually explains what happens ?
I'm probably wrong here but:
AFAIK the ECU contains some mapping data to do with fuel usage, o2 levels, temperatures etc. The map tells it how much fuel to pump into the engine under a given circumstance. The map itself is built-up/modified when the car is running, so if you change fuels or the car degrades the ECU is still doing it's best to give you an efficient engine.
The idea is that reseting the ECU resets all those maps and forces the ECU to build a fresh new set. Having changed something, like cleaing the MAF, adding an Apexi air intake or changing the exhaust reseting the ECU will build a map which isn't polluted with data from the old engine setup.
I think. Maybe.
Good explanation Phil - resetting the ECU forces it back to stock and into 'learn' mode, so you will the optimal map settings for your car. I'm not entirely sure it stops learning, but for the increase in driveability I got after my reset (TTE, Apexi, clean MAF) I would think that it only really learns for a period then adjusts on a minor scale for fuel and atmosphere differences.
Quote from: "phil4"The map itself is built-up/modified when the car is running, so if you change fuels or the car degrades the ECU is still doing it's best to give you an efficient engine.
Slightly offtopic, but does this also mean that the ECU will learn "for better", if you keep using higher octane fuel?
Quote from: "Tem"Slightly offtopic, but does this also mean that the ECU will learn "for better", if you keep using higher octane fuel?
TBH Tem, there has been a lot of debate about using higher octane fuel in the '2, I do personally and have had no problems, but theoretically yes, if you run high octane and reset the ECU, then continue to use high octane, it should optimise the engine for that fuel.
Quote from: "Tem"Slightly offtopic, but does this also mean that the ECU will learn "for better", if you keep using higher octane fuel?
Like Slacey, I'd have thought so.
Quote from: "Slacey"Quote from: "Tem"Slightly offtopic, but does this also mean that the ECU will learn "for better", if you keep using higher octane fuel?
TBH Tem, there has been a lot of debate about using higher octane fuel in the '2, I do personally and have had no problems, but theoretically yes, if you run high octane and reset the ECU, then continue to use high octane, it should optimise the engine for that fuel.
In theory that should be true, but it's not, or at least, not enough to be significant. Looking at the tuning maps I used for the Unichip proved that.
The stock maps do vary but are so conservative that will make no practical difference but just changing the fuel in the UK environment, IMO.
I was just wondering, since...well, check the dyno from 100% stock engine:
m http://koti.mbnet.fi/temmeke/tmp/dyno.jpg (http://koti.mbnet.fi/temmeke/tmp/dyno.jpg) m
Always used only 98-octane...
Thanks for the explanations guys. The grey fog of ignorance has lifted....slightly !! s:) :) s:)
Ally.
To resurrect an old topic as I've been using the SEARCH button....
To reset the ECU it seems to me it's going to be easier to just remove the fuse s:? :? s:?
But which fuse s:?: :?: s:?:
Looking in the owners manual p264, is it fuse No 34 (ECU-B1 25A: ECU-B and DOME fuses) in the engine compartment s:?: :?: s:?: s:?: :?: s:?:
I think there's 2 in the engine bay, and one in the frunk (although I could be wrong, and I never managed to reset mine that way. Just disconnect the battery instead).
your right Dan, theres several fuses, i've already counted 5 in the diagrams, quicker to disconnect 1 bolt for 15mins
MAF cleaned and ECU reset. Just ready for roadtest tomorrow to see what difference.... s:) :) s:)
I think I will be doing this every 6 months now.
The idle at 800rpm is as smooth as silk, previously is was a little lumpy.
However the acceleration appears to be so much better than before. s8) 8) s8)
The only other item I noticed is that my TTE exhaust seems quieter. Normally if your are travelling and just touch the accelerator then you hear a roar this has somehow softened, is this possible just by cleaning your MAF and resetting your ECU s:?: :?: s:?:
Are you being chipped today David? Let us know how it goes, you have the printout of my Dyno to compare, be interested to see how yours does.
Quote from: "Liz"Are you being chipped today David? Let us know how it goes, you have the printout of my Dyno to compare, be interested to see how yours does.
Liz
Yes I was supposed to being chipped today, but slight technical hitch with Aldon....... so delayed a little s:cry: :cry: s:cry: s:evil: :evil: s:evil: s:( :( s:(
Had my 2 from new for about 18 months and lately its been feeling a little sluggish. After reading this thread I thought I might as well try cleaning my MAF, it can't do any harm.
What a difference !!
The throttle is so much more responsive and the idle time is tons better. This is definitely a job I'll be doing every 3 months.
Can't wait for Friday now - TTe springs & TTE exhaust gets fitted. Woohoo
Quote from: "Gazz"Can't wait for Friday now - TTE springs & TTE exhaust gets fitted. Woohoo
good choice of next mods s:D :D s:D
for your next one after you may want to consider the TRD front strut brace(Tower Bar) followed by the TTE sway bar
Next one, who said there was going to be a next one s:!: :!: s:!:
I'll bare that in mind Kanu, this could get expensive s:lol: :lol: s:lol:
Quote from: "Gazz"Next one, who said there was going to be a next one s:!: :!: s:!:
I'll bare that in mind Kanu, this could get expensive s:lol: :lol: s:lol:
come into the fold, it'll be alright, QUICK NURSE GB STAT! s:wink: :wink: s:wink: