I've tried everything.....and now it's dead (CONCLUSION)

[The Morris]

I do fell sorry for you. But it might all be simple faults. take it to somebody who knows what they are doing get it sorted and im sure you wil love the result.

[skytek]

Thanks mate but that's easier said than done unfortunately. All the experts seem to be on the mainland. Me and my longterm mechanic have tried everything we can think of. Even if I took it across on the boat there's no promise they'd get it sorted and I'd lose even more money.

[matt_mr2t]

If it's a mechanical problem with the engine I'm sure James would have it covered. I cant believe that would be the cause though.

When James re-built the engine Chris run it in so meticulously that nothing should really have failed.

I know it's along way for you but have you thought about taking it to James to look over - I'm sure he, who knows the car would find your problem.

[skytek]

Yea I thought about it. It's pretty drastic measures though. I spoke to James on the phone about it (great guy) and he was pretty convinced it was a boost leak but it wasn't. Taking the car to James would cost hundreds of pounds at the risk of still not finding the problem. I don't have an unlimited supply of cash so for every hundred quid that gets wasted in my quest to solve the problem the more financially squashed I become. It's getting silly now with the amount of money getting wasted.

[mrloaf]

reuben,
i'm sorry to hear about the trouble you've been having with this, been following the thread closly and your understandably upset after putting so much £££ and effort into this car

i can imagine your frustration with this matter and if it helps i know of a quiet cliff face and have recently acquired a tri-pod for my camcorder so gime a shout we can work somethin out

on a more serious note...a bit of luck is well deserved for a decent fella like your self and hope you take time to calm down and give it 1 more shot, be a shame to give up lad, 1.2 boost may be just round the corner!...you know i'm right!

good luck in whatever decision you make!

[MR2lover]

I do remeber chris had problem with it before which sounds like just what your getting which james fixed. Was boost related

[skytek]

Yea I think it was his actuator that went on him and it reduced the boost he was able to hit. He changed the actuator to fix it but I've had this checked twice and it is working fine. This is a different problem. I'm not getting more than 1bar which is a problem in itself but the bigger problem is that the power is dramatically low even at one bar. It feels more like 0.5bar. For a few days after the new fuel pressure reg went in I had good power at 1bar but now it's gone back down to the equiv of an NA but a bit more torquey.

Mr Loaf, I appreciate the words of motivation buddy! Haven't seen you around Belfast lately but congrats on getting through the mot with no probs!

There's isn't alot more I can do really and I'm upset at how much money I've had to keep throwing at it but getting absolutely nowhere for it. The car needs an oil and filter change this weekend and that's about the last I'm prepared to spend on it at the moment. It's like lifting money out of my wallet and burning it on a weekly basis.

You Mainland guys are lucky you have places like Rogue and 3S who really know what they are doing. If I lived over there I probably would have had this sorted months ago.

I've decided that when I eventually get the car all sorted, I'm going to sell up and forget about mr2s. It's been a nightmare and I've had nothing but trouble since the very beginning and my life is so incredibly busy with basically working 3 jobs that I just don't have time for a car that lets me down so often. So, I'm going to sell it, along with a few other things and get a 2/3 year old car that won't give me as much trouble.

Thanks once again for everyones help and advice. You're a great bunch of chaps =D>

[matt_mr2t]

Such a shame that your so isolated from the people who could prob sort this so easily.

For some reason it's screaming electrical to me.

[skytek]

Could an electrical fault really cause the charicteristics I'm seeing? Underboosting and underpowering? Is weird because I know it's not fuel starvation as the exhaust pops all the time now that I've adjusted the new fuel reg and the turbo seems fine too. You'd think that plenty of fuel along with plenty og air would mean plenty of power

[ENSMR2]

Try a search on the last members username.

Maybe the problem was discussed before.

When I vought my current MR2 I made sure it was off a member so I could search his posts and see what problems there were. Luckily there were none.

[skytek]

Yea thanks mate I've already been through hsi posts. I speak to him on msn the odd time and he tries to help but he doesn't seem to know what the cause is either. I'm going to service the car this weekend and have agood fiddle around with everything at the same time.

[skytek]

Guys! I managed to get 1.15 bar tonight with good power but then suddenly the power vanished again and the engine warning light came on.

I just did an error code check and I'm getting 25 "lean error" and 52 "knock error" So it seems that despite puting a new fuel pressure regulator on I'm still running lean, even though my eshaust iis popping like a b*tch now on almost every gear change.

Does that make anything more clear for any of you?

(sorry sorry, I must be doing your heads in by this point!!)

Free pint for whoever figures this one out

[skytek]

Maybe I should start replacing all the parts of the fueling system one by one.

[THE DUKE]

Knock sensor retards timing and boost!! Get it checked out.. Reset the ecu and go for a quick blast to see if it comes back.. If so work from there. You might not have a fuel problem, the knock sensor might have gone and retarding the timing will throw up a fueling error..

Just a guess?

Also remove the AVCR pipe work to the turbo and see how much boost is generated.

Dont give up just yet mate, i've had my rev 1 3 years and had a new gearbox, engine, sprayjob, blahblahblah.. Im still going strong.

[skytek]

Ok I'm feeling a little more positive about it all this morning. I had almost decided that when I get the car sorted I was going to sell up and take out a loan to buy a used 350z but after speaking to an ex mr2 tubby owner who now has a Z I found out that the power will be a complete let down and it won't feel anywhere near as fast as my modified tubby.

This was just the news I needed to hear to steer me off changing cars and try to get this thing up to scratch again.

I'm selling my bike this summer and if I can get this damn problem sorted I'm going to spend the money on new suspension, body kit, wheels, paint fix ups and strip out the interior and find all the rattles!!

So back to the fuel problem....

Where do I go next? change the knock sensor? I must mention that when I had the guys check for det they said I was getting major detination so I genuinely did or do have a fuel starvation problem.

So, do I change the fuel pump and filter? I've already changed the pressure reg and it wasn't that. What else can I change if they don't do the trick?

Slowly but surely (and financially cripplingly ) I'll narrow it down until I find the problem.

When I get this nightmare solved, every one of you who has helped out so far gets a free A3 print of a hand sketch of my old black NA (if you want one) as my way of saying thanks!

Click link to see

http://www.reubenhalsey.com/car%20sketch%20small.jpg

Ok, so what do I replace next?

[mrloaf]

Ok I'm feeling a little more positive about it all this morning. I had almost decided that when I get the car sorted I was going to sell up and take out a loan to buy a used 350z but after speaking to an ex mr2 tubby owner who now has a Z I found out that the power will be a complete let down and it won't feel anywhere near as fast as my modified tubby.

This was just the news I needed to hear to steer me off changing cars and try to get this thing up to scratch again.

I'm selling my bike this summer and if I can get this damn problem sorted I'm going to spend the money on new suspension, body kit, wheels, paint fix ups and strip out the interior and find all the rattles!!

So back to the fuel problem....

Where do I go next? change the knock sensor? I must mention that when I had the guys check for det they said I was getting major detination so I genuinely did or do have a fuel starvation problem.

So, do I change the fuel pump and filter? I've already changed the pressure reg and it wasn't that. What else can I change if they don't do the trick?

Slowly but surely (and financially cripplingly ) I'll narrow it down until I find the problem.

When I get this nightmare solved, every one of you who has helped out so far gets a free A3 print of a hand sketch of my old black NA (if you want one) as my way of saying thanks!

Click link to see

http://www.reubenhalsey.com/car%20sketch%20small.jpg

Ok, so what do I replace next?

now thats a nice car

good stuff, i knew you'd see sense in the end lad - get her sorted

[MR2lover]

Mate your best but would be to buy a powerfc and fit it that way you can see everythign that is going on with engine through commandor and then get it mapped so its always 100%.

if u have no error codes i cant see it being related to all these bits that people are listed. like 02 sensor etc

With a powerf fc u can see if its a ignition problem with timing being pulled or a sensor giving dodgy reading as it can all be viewed..

With your rev3 conversion it will just pulled straight in and work but will need mapping as the jap fuel its is based mapped on is alot high octane than ours

HTH

[matt_mr2t]

I still think there's something wrong with the AVCR.
Well done for perking up though dude!

[skytek]

Mate your best but would be to buy a powerfc and fit it that way you can see everythign that is going on with engine through commandor and then get it mapped so its always 100%.

if u have no error codes i cant see it being related to all these bits that people are listed. like 02 sensor etc

With a powerf fc u can see if its a ignition problem with timing being pulled or a sensor giving dodgy reading as it can all be viewed..

With your rev3 conversion it will just pulled straight in and work but will need mapping as the jap fuel its is based mapped on is alot high octane than ours

HTH

A bit further up the page I've named the error codes I'm getting. The car's telling me it's running lean and getting knock so it really can't be anything other than a fueling issue.

I've sourced some second hand bits that I should be picking up tonight (fuel pump, o2 sensor and knock sensor) but my mechanic is away for 10 days now so I won't be able to have them fitted till after that.

The thing I don't understand is why I'm getting such severe detonation when there's so much fuel going through the system that my exhaust is popping all the time and my fuel economy is at an all time low since we adjusted the fuel pressure regulator.

I remember a few weeks ago I noticed a petrol smell which I've been getting quite often when just casually driving around and I wonder if this is related.

[screech205]

Right i've just had a similar problem with my MBC, it was set that high that it was trying to boost at 20psi but it was causing det so wouldn't go above 10 psi. Wound it all the way aout, now hitting 14psi with no knock or problems whatsoever

So if you're having problems with your EBC, maybe try unplugging it and putting a MBC on just to see what happens. If all is well and good you've found your problem

HTH