My Car's sick :-(

[Carribdis]

Not that i'm aware of, and it was all pretty baked together. Think i'm gonn have to just put it in and have the jumpsuits have a looksee.

[Anonymous]

I'm thinking some problem with fuel supply,maybe filter etc.

[Carribdis]

Just been reading up about changing the fuel filter. Looks like a royal pain in the buttocks. It can't turn into more of a mission as getting the manifold off was, surely!!

[ChrisGB]

Check thoroughly for split hoses and the like on the intake side?

Coilpack fault maybe (but I thought the ecu logged misfires)?

Dodgy MAF or throttle pot?

Cannot think of much else and some of these are a PITA to diagnose.

Chris

[Carribdis]

Cheers man. Thanks everyone for the advise. Just a case of trial and error i guess. So relieved it's not my pre cats though. I'll keep you posted if i find out anything..... something to look forward to isn't it lol. Thanks again all!

[spit]

Good news so far then   s8) s8)  

Are Westfield able to read J-Spec codes? If so, that's a very good place to take it as they'll be able to get some diagnostic info off the ECU it terms of sensor readings. Let us know - J-spec compatible readers are thin on the ground in the UK!

If I had to prioritise, I'd look into the airflow side first as the likely culprit. As Chris says, check for splits in vacuum hoses, and the short corrugated bellows part of the big intake pipe too.

If air pathway is intact, you can get readings from the MAF (via Westfield diagnostics or with some graft and a voltmeter) - or find a local member for a swap-out to write off the possibility that its under-reading. Throttle position sensors are also comparatively easy to read and/or swap out too.

In any case, I'd recommend this kind of swap out even if its inconclusive as it can help highlight where to go next.

Less simple when it comes to failing coilpacks as that's when you introduce the possibility of fuelling issues too via faulty injectors. I would expect a CEL but its amazing how far you can push this engine before it throws a light and it sounds like you may be struggling to push it far enough! Worry about this after you've looked into airflow and metering.

On the fuel side - filters seem pretty robust. Pump pressure could be down .... but we're not commonly known for pump failures.

VVT-i filter would have to be extremely blocked to give you symptoms as severe as you're getting - I suggest that's one to park for the moment.

[Carribdis]

Wicked Thanks!!

I think Westfield can read the Jap cars. They do claim to be a Jap Import specialist. So they either read it, or just said they did in order to charge me 30 notes or watever it was. Here's their website, might be worth some1 with a bit more knowhow putting them through their paces lol.

 m http://www.westfieldmotors.co.uk/ m

[Carribdis]

So today, i think i discovered i have a dodgy injector!! Tried starting the engine with 1 unplugged at a time, and the 3rd one from the left made no difference! So BINGO!! Can't believe i didn't check them earlier. I blame all of u  :-) :-) :-)  

So next question, how easy is it to replace??

[aaronjb]

Injectors on this car are an absolute doddle to change.. the hardest bit is unhooking the wiring loom clips from the little pegs they're on at the back of the engine - the release catches are on the unsighted side, feel around, pull up the little tab and then slide the wiring toward the front of the car to release.

So:

1) Remove the black plastic cover
2) Unhook the wiring loom across the back of the engine - two plastic clips and two 10mm nuts on the far extremes of the end (you'll see 'em) - then push it back out of the way
3) Unplug the injectors (Ok, you already did that bit  s;) s;) )
4) Unbolt the fuel rail - two 12mm (or was it 10?) bolts
5) Lift the fuel rail - congratulations you now smell nicely of petrol (don't worry, it's not under pressure, but it will empty itself over the engine - it'll dry out quickly enough.. Unless you're in a pit under the car at the time, in which case Mark tries to gas you with petrol fumes.. but I'm not bitter  s:lol: :lol: s:lol:  )
6) The injectors will either stay stuck in the rail or the head - they pop out of the rail with minimal tugging, and just 'sit' in the head. Be careful not to lose the pintle caps into the engine - they're on fairly tight, but you can knock them off.

When replacing them use new O-rings from Toyota (not expensive, come as a pack of four) and if you want to do it by the numbers, use new plastic isolators (these sit in the head and usually stay there, but sometimes get stuck to the injectors - like little plastic model car tyres..).

Be careful not to pinch the upper O-rings as you put the injectors into the fuel rail.  I should clarify - sit the injectors in the head (in the isolators) and then put the fuel rail down onto the injectors.

When bolting back up the fuel rail bolts just need to be "snug".  Turn on the ignition and make sure fuel isn't spraying out from a pinched O-ring.  Re-attach the wiring loom, and you're done.

Don't think I forgot anything there.. I'm sure someone will correct me if I did  s:) s:)

[Anonymous]

Hope this is the problem, far better than a fubar engine.  s:bounce: :bounce: s:bounce:

[Carribdis]

Wicked! Thanks gents.... yet again. That sounds like next weekends job.

[Carribdis]

Quick quizical for you all. How much should i be paying for a new injector?

[roger]

Quick quizical for you all. How much should i be paying for a new injector?

Suggest a quick call to your local MrT, but got to be over £100 each.

The injector could be just blocked as well. If you've got the time & inclination suggest that you take them all out and send for a refurb  http://www.mr2roc.org/phpBB3/viewtopic.php?f=41&t=19661

If that sorts it, great. If it doesn't, then at least the other 3 will match the specs of the new one.

[Liz]

Or you could try for a price from our affiliate - Cheap Toyota Parts.

[Carribdis]

Funnily enough i was just looking at that cleaning thing. Though when we measured the resistance of them all, 3 of them were at 15ohms, and the dud one was 150k. So it seems like it's electronically minced rather than a blockage.

[Carribdis]

Howdy all. Well, got my new injector today, put it in, and magic! She's all better again. Thanks to everyone for all your help and advice. Think i owe you beers! Thanks again!

Ad