On the way to work this morning my car started misfiring with the engine management light flashing on and off, at the moment its intermittent, does anyone know what this could be?
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I've just had the precats taken out of it makes any difference?
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You'll need to get the code read with an OBDll reader and then go from there. I may be wrong but I'm sure if EML is flashing you shouldn't keep driving s:( :( s:(
What, exactly, was done to remove the precats?
Did you take it to the guy who was going to do it from underneath with the manifold still on the car? Were the O2 sensors removed before the bashing commenced?
Usually, when a problem crops up, it's related to what was done just before....
The sensors weren't removed but it drove fine for about 50 miles after
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Lots of things are possible.
As has been said, eml flashing is a serious fault ... stop and don't drive it till you've diagnosed and fixed it.
Many things could be wrong, especially if he did the precat removal on engine without removing the sensors.
The only place to start is getting a code reader on, then work from there.
+1 On Wabbitkilla's advice. Bashing and sensors don't mix well. You may have an intermittent fault. As advised above, get a code reader (really a most basic tool with one of these cars) and see what it's showing. The advice on here is generally very good, so it's worth taking heed...
I'm taking it back to the garage on Monday but that means driving it 30 miles to get there, will use a bike until then
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Can anyone recommend a model of these code readers? I not long sold one but it was really basic
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Quote from: "Steveohim"Can anyone recommend a model of these code readers? I not long sold one but it was really basic
It's not the cheapest, and not the most expensive but I've found this one to be great;
m https://www.amazon.co.uk/Launch-Creader ... B004B0TDIK (https://www.amazon.co.uk/Launch-Creader-Reader-Scanner-Diagnostic/dp/B004B0TDIK) m
If you have a smart phone you can buy a wireless reader for not much cash.
I use a blutooth reader with my galaxy s5 and the Torque Pro app.
Less than half the price of the above and fine to.just read codes.
Is there a database for codes? To look up the code to find out what it means?
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Quote from: "Wabbitkilla"m https://www.amazon.co.uk/Launch-Creader ... B004B0TDIK (https://www.amazon.co.uk/Launch-Creader-Reader-Scanner-Diagnostic/dp/B004B0TDIK) m
This is the one I have, very good with lots of options for specific tests and live feeds
Quote from: "Steveohim"Is there a database for codes? To look up the code to find out what it means?
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If you google the code it will tell you but again if you have a smart phone app it does that for you.
Quote from: "Steveohim"Is there a database for codes? To look up the code to find out what it means?
Indeed there is on this very forum l viewtopic.php?f=46&t=12480 (http://www.mr2roc.org/phpBB3/viewtopic.php?f=46&t=12480) l
Ok I've ordered that reader, next question is with is the obd2 port on the car?
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so they removed the precats without removing the sensors or the manifold?
lets hope they got all the precat material out
Yes he let me look inside to make sure I was happy, all 3 amigos snapped off just doing that, so I dread to think what happened if I took the whole manifold off
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The port is under steering wheel above the accelerator pedal.
How did he flush it out if it was on the car ?
Dropped the down pipe and it just fell out the bottom
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While I'm waiting for a code reader I thought I'd give an update, the misfire hasn't happened since but I did notice that it happened on a very wet morning and no problems since in the dry, I do remember me having a Peugeot 309 gti with the same problem years ago but never finding out what it was, has this happened to anyone else?
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Sorry, just to make things clear ... dropped the downpipe and what happened?
Removed the precats
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What i meant was you said "It just fell out the bottom"....
Does that mean they were already falling apart and just fell out?
I thought the precats had to be "knocked" out if still intact in situ?
Yes sorry that's what I meant knocked out
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No error codes, but the plugs were in pretty bad condition so fingers crossed, it happened again this morning for about 5 miles then disappeared
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Sounds like it just needs a darned good service, new plugs and all.
Well on the 30 mile drive home the engine management light did flicker for a minute or 2 but no misfire as far as I can tell, could a coil pack be at fault?
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I had this on mine and mine has only done 10,800 miles from new but stored over winter months, turned out to be one faulty spark plug , although no mileage but with age it still failed so a new set of plugs sorted mine.
Had new set put in, seemed to improve it but the engine management light flickered for about 2 miles, not sure if it misfired as I was going quite fast with the roof down, it's weird that it bought no error codes on a snap on code reader, quite frustrating. I've bought myself a cheap code reader the will try plug it in when it happens again
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Mine was saying misfire cylinder 3 so I moved the coils around first , reset the code and drove it again and said cylinder 3 again so that iliminated the coils, swapped plugs around reset it and went for a drive and a different cylinder fault occurred so knew it was a doggey plug. Replaced and reset , sorted. May be a coil pack ?
I'm hoping it will give me a code when it happens again but nothing when its fine
Ok so I got my code reader through today, and when I connected it it gave me a code of po304 cylinder 4 misfire, the plugs were changed so I'm guessing it's a coil pack? What does erase codes mean on the reader, is that erase codes from the ecu?
Erase codes means erase the current error codes from the ecu.
Swap coil packs 3 & 4 over to verify if the fault follows the coil pack. If it does ..... replace it
Ok just to confirm number 4 is on left as you look at the engine under bonnet?
Quote from: "Steveohim"Ok just to confirm number 4 is on left as you look at the engine under bonnet?
Correct, they number 1 to 4 from the timing chain end of the engine.
Ok thanks but after I cleared the codes I drive it about 5 miles and no codes have reappeared since, does that mean it was the plugs?
Please be logical about this.
1. You said the plugs were in bad shape.
2. You said the plugs were changed.
3. You said the misfire was still there.
You can understand how I am now getting totally confused by your statements.
So can you please tell us what the order of events is?
Quote from: "Wabbitkilla"Please be logical about this.
1. You said the plugs were in bad shape.
2. You said the plugs were changed.
3. You said the misfire was still there.
You can understand how I am now getting totally confused by your statements.
So can you please tell us what the order of events is?
i never said the misfire was still there, i said the engine light flickered on for about 2 miles. yes the plugs were in bad shape, so changed those, got my reader through today and it said misfire on cylinder 4, so cleared codes and drove it 5 miles took another reading and still no codes, so i was asking was it possibly the plugs, but if it was why did the engine management light flicker on when driving back from the garage just after having the plugs fitted?
Ok, some codes take a few trips to appear.
Go out for a few trips and see how it goes.
Fresh plugs make a lot of difference.
The usual plan of attack for misfire after you've ruled out duff plugs is exactly what Wabbit has suggested - swap coil packs around and see if the code moves with the offending pack. If it does, replace the coil pack, if it doesn't, get your cyl4 injector checked out.
Above all, don't drive the car if the EML is flashing.
As for why your EML has been intermittent, well, who knows. Maybe you're up and running again following a severe misfire fault. If it returns, take action.
Why is it important not to drive it if it's flashing? I would of thought it would be more serious if it was permanently on
Really? I suspect most people would disagree with that.
Its pretty standard on cars for a steady light to indicate a service code and a flashing light to indicate a more serious fault.
Ah ok, didn't know I will keep my eyes open for it
Update*
Swapped the coilpack from cylinder 4 to cylinder 3 erased codes took for a drive, started to misfire took a reading, still saying cylinder 4 with a flashing engine management light, what next? Injector is failing?
If you're up for it: Swap injectors 3&4 and see what gives. If it's the injector the fault should move. If not, time for a compression check.
Quote from: "Carolyn"If you're up for it: Swap injectors 3&4 and see what gives. If it's the injector the fault should move. If not, time for a compression check.
is there any how 2's for that? just looking through my service history and it appears cylinders 2&3 have had injectors replaced so I'm hoping its that or i think I'm going to be in trouble. would a faulty injector cause a flashing EML?
Quote from: "Steveohim"is there any how 2's for that?
Not something I'd recommend if this is your first time at it. Older seals and seats get very brittle and petrol leaks are not pleasant. One for your garage friend maybe? In the right hands its no more than a 20 minute job.
Never encountered this giving a flashing CEL but I guess its possible. It may not be your answer but its sensible to find out or at least rule it out.
It's an intermittent misfire that only flashes when the misfire happens if any help?
I've read a post on here about a guy with the same problem, turned out it was an injector, can anyone recommend a good place to get one?
I'd be inclined to do the 3-4 swap just to confirm that it is in fact an injector issue, but up to you. Its the next logical zero-cost option towards getting a diagnosis.
Any idea why the injectors needed to be replaced previously on cyls 2&3? There might be some clues there.
An ad in the ROC's wanted forum should get you a replacement that works. I've got a bucket full of them here, I'm sure others have too. Don't spend too much - a friendly member should see you right for £15 delivered, tops.
If you're going down this route, I also recommend you pop into a Toyota dealership and order the seat and O-ring seals for top and bottom of the injector. They really hate being re-used when they're old.
I've got it booked in for next sat, he has some refurb injectors, no idea why the other injectors failed doesn't say on paperwork
All sorted, was the injector