Help!!! advice needed, error 34 and no ooomph!!!

Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
Anything and everything to do with maintenance, modifications and electrical is in here for the Mk2.

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bobhatton
Posts: 3351
Joined: Fri Aug 25, 2006 9:34 pm
Location: Bodmin Cornwall

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by bobhatton »

masterbateson wrote:Oh it deffo goes like a stabbed rat from 5-7k!!! :twisted:
But i think its a bit to flat low down, maybe i am wrong and its how it should be, but i reckon my 1.6tdi pug 407 has a bit more go, down low? :?: :-k

I will take it round to turbo toms off mr2oc and let him have a go with it, see what he thinks.


In top gear you should find boost will start to come in at 1800 rpm, it will not build fast at first but will get faster as the revs go up.

Sort the waste gate out, check cam timing then ign timing and reset ECU
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
kev8611
Posts: 503
Joined: Fri Nov 15, 2013 12:08 am
Location: Scotland

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by kev8611 »

If i were you id be checking timing, compression and wastegate etc and stop going out trying to rip the thing to death and guessing if you have fixed it before you do real damage.
masterbateson
Posts: 547
Joined: Sat Jan 24, 2015 7:09 pm

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by masterbateson »

ripping the thing to death hey? :roll:
2mad
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Location: uk

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by 2mad »

How you getting on buddy .. have you had the spanners out :) .. beautiful car cant wait for it to be up and running sweet for you :thumleft:
masterbateson
Posts: 547
Joined: Sat Jan 24, 2015 7:09 pm

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by masterbateson »

No progress yet, changed the fuel filter as one came with the car.
There appeared to be an initial improvement, but this seems to have been a red herring.
Not to fused as the fuel filter on the car was an old one and looked like maybe the original one, so it was due a swap anyway.

Going to meet turbo tom of MR2oc this afternoon, he is a mechanic and a mr2 turbo fanatic so hopefully he will be able to work some magic or at least pim point what needs to be done.
2mad
Posts: 5983
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Location: uk

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by 2mad »

Good stuff .. its nice when members near by chip in :thumleft: .. best of luck bud :pray:
androo007
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Joined: Mon Mar 03, 2014 1:43 pm

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by androo007 »

Stop wasting money on upgrades and manifolds and boost controllers. Spend time and cash gutting out all that sh!te pipework in the engine bay and get it stripped back, obvious problems fixed and back to OEM. Once you have a good foundation build up using quality parts only once it is running 100% and ALL servicing items are up to date.

I see people are being very polite and this place is great.....due to the good friendly people - but surely its obvious if an actuator arm is busting out the sides you shouldn't be looking at boost controllers and whazzing it up to 7k.

Simples, surely? 8)
MartinF
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Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by MartinF »

androo007 wrote:Stop wasting money on upgrades and manifolds and boost controllers. Spend time and cash gutting out all that sh!te pipework in the engine bay and get it stripped back, obvious problems fixed and back to OEM. Once you have a good foundation build up using quality parts only once it is running 100% and ALL servicing items are up to date.

I see people are being very polite and this place is great.....due to the good friendly people - but surely its obvious if an actuator arm is busting out the sides you shouldn't be looking at boost controllers and whazzing it up to 7k.

Simples, surely? 8)


:thumleft: :thumleft: :thumleft: :thumleft: :thumleft:
Blue Lexus RCF
Black MKIV UK Manual Supra
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thomp1983
Posts: 1545
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Location: newark, notts

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by thomp1983 »

Suppose someone had to say it bluntly
Ryan S
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Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by Ryan S »

androo007 wrote:Stop wasting money on upgrades and manifolds and boost controllers. Spend time and cash gutting out all that sh!te pipework in the engine bay and get it stripped back, obvious problems fixed and back to OEM. Once you have a good foundation build up using quality parts only once it is running 100% and ALL servicing items are up to date.

I see people are being very polite and this place is great.....due to the good friendly people - but surely its obvious if an actuator arm is busting out the sides you shouldn't be looking at boost controllers and whazzing it up to 7k.

Simples, surely? 8)


Androo is spot on man, i wouldn't even want to drive the thing with a misfire, if it turns out to be a dodgy fuel pump or low fuel pressure you could quite easily run the motor lean and completely wreck the pistons.

Don't take anything said as a criticism, we simply don't want to see you grenade your new car :thumleft: If i were you I'd be tempted to just put it into a specialist and let them sort it, chences are S-bits or Pacific works etc could have this sorted in a day.
kev8611
Posts: 503
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Location: Scotland

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by kev8611 »

Spot on from these guys ^^

What was the result with the wastegate and downpipe? Are the compression figures coming back ok? No more error codes?
masterbateson
Posts: 547
Joined: Sat Jan 24, 2015 7:09 pm

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by masterbateson »

There are a few people who jumping to a few conclusions on here, and as most conclusions go..... they are the wrong ones.

Lets start with the manual boost controller.
The idea behind that is not to run over boost, no, its to turn the boost down as low as possible whilst diagnosing the faults.

Upgrades.
No upgrades are being fitted to this car untill she is running right.
The upgrades as in (bigger stainless intercooler with fan) and manifold(which prob wont be going on) where purchased from the seller for buttons when i bought the car.

The car is not being thrashed about every time its tested to see if anything has had an effect/change.

Now then after clearing that up [-X

Took car to Turbo toms for a look over, happily he confirmed my own opinion on the car, that the engine is sound and so is the turbo, he checked ignition timing for me and we discovered it was adjusted all the way to one side at dizzy end.
Ignition timing has made the car a little better but still not right.

We decided next course of action was to get the down pipe off, unfortunately tom was busy with his own jobs so I took my car home.
Any hoo, got home 1st job was a simple one, we were worried that leaving the original BOV in place as the previous owner had done but with the aftermarket one in place, we might have leakage probs.
I created a bung to block this off, took the car out and it was markedly better, this current setup will be temporary till i can sort out a proper final solution.

The next job proved to much harder and less fun #-o

As most jobs go it started easily, with removal of hot and cold pipes from the intercooler, then Jacked the car up and popped on axle stands and wood block under tyres.
Then the fun began trying to get the down pipe off! :eye: boy!! there isnt much room to play with and the nuts securing it on are so difficult to get to.
Any way after a certain amount of cursing I got the down pipe off.

Why'd you take the down pipe off Paul'y?? :?:

Well I'll tell you, 2 reasons
1 to test the wastegate and be able to see it operating and
2 the gasket was shot at and needed replacing anyway (cheapo gasket)

I'm hoping the exhaust manifold gasket is ok as i dont want to have to take the mani off if i can help it.
The exhaust system sounded blowy, I had already found a leak on the underside of this gasket(wastegate-downpipe) but with the hot cold pipes removed, could see from above the top was shot at too, Hopefully this was the only leak/blow.
One partial theory is the leak/blow post turbo may effect negatively on the exhaust back pressure????
But even if it doesnt, that gasket needs replacing and wastegate testing.
Next job today Is to check the cam timing.
I'll pop some pics up later :-$
masterbateson
Posts: 547
Joined: Sat Jan 24, 2015 7:09 pm

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by masterbateson »

Well weather is no good and I cant for the life of me see how you can check the timing properly with the engine in situ? :?: :? you cant see bu88er all.

Heres a few pics
Image
Image
Image
Image

knackered cheepo gasket
Image
There are some bodgy looking painted on markings on the top of the casings but they are very rough and as you may be able to see at back off the cog(nearest head) one tooth is painted.
Both inlet and exhaust cams painted cog tooth point to 12, but cant see factory markings so no way from these previous diy markings if they are acurate.

On another note re the fuel pressure, I have no access to anything to measure fuel pressure so thats a prob, might have to get garage involved, but apparently the adaptor that you need for our cars is well expensive??

I think though as some of the symptoms suggest fuel pressure could be low that i will fit a nice new Wallbro pump, its not going to do any harm and if on the original its allegedly likely to be getting a bit tired.
Will also be handy if i want to chase some more horses at a later date.

I swapped the fuel filter fri as i got a free one, and that made a small difference so maybe that hints a pump being tired.
Anyway I've gone as far as i can today so I am off to remove some tiles from my bathroom, oh joy!!!! :|
Nic
Posts: 1910
Joined: Sat Jan 21, 2012 4:26 pm
Location: UK

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by Nic »

masterbateson wrote: Lets start with the manual boost controller.
The idea behind that is not to run over boost, no, its to turn the boost down as low as possible whilst diagnosing the faults.


A boost controller (manual and electric) can only raise the boost pressure, it cannot lower it, this is why members are advising sorting out the issues you have before fitting one.
Last edited by Nic on Sun Mar 08, 2015 12:07 pm, edited 1 time in total.
Nic
[email protected]
MR2 Rev 3 GT Turbo
Nic
Posts: 1910
Joined: Sat Jan 21, 2012 4:26 pm
Location: UK

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by Nic »

masterbateson wrote:I'm hoping the exhaust manifold gasket is ok as i dont want to have to take the mani off if i can help it.
The exhaust system sounded blowy, I had already found a leak on the underside of this gasket(wastegate-downpipe) but with the hot cold pipes removed, could see from above the top was shot at too, Hopefully this was the only leak/blow.
One partial theory is the leak/blow post turbo may effect negatively on the exhaust back pressure????
But even if it doesnt, that gasket needs replacing and wastegate testing.
Next job today Is to check the cam timing.
I'll pop some pics up later :-$


Exhaust back pressure is a myth, especially so on a turbo engine http://www.gomog.com/allmorgan/exhaustbackpressure.html

Get someone to block the tail pipe with an old wet towel, this should help you locate any blowing from the exhaust. If it is leaking near the oxygen sensor then this could cause the engine to run very rich.
Nic
[email protected]
MR2 Rev 3 GT Turbo
2mad
Posts: 5983
Joined: Sun Feb 28, 2010 12:11 pm
Location: uk

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by 2mad »

Looks like your getting stuck in Paul .. well done getting the downpipe off .. no easy task.. buy a proper toyota gasket (or two that has been suggested) and do the foot pump trick before you bolt it up .. make sure its not caching.


If you think you might have a fuel problem .. mine got stuck in low voltage mode , my gauge picked it up so i did the 12v mod .. no problems after that ....

Image


Thread .. http://www.imoc.co.uk/forums/kb.php?mode=article&k=20
kev8611
Posts: 503
Joined: Fri Nov 15, 2013 12:08 am
Location: Scotland

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by kev8611 »

masterbateson wrote:There are a few people who jumping to a few conclusions on here, and as most conclusions go..... they are the wrong ones.

Lets start with the manual boost controller.
The idea behind that is not to run over boost, no, its to turn the boost down as low as possible whilst diagnosing the faults.

Upgrades.
No upgrades are being fitted to this car untill she is running right.
The upgrades as in (bigger stainless intercooler with fan) and manifold(which prob wont be going on) where purchased from the seller for buttons when i bought the car.

The car is not being thrashed about every time its tested to see if anything has had an effect/change.

Now then after clearing that up [-X

Took car to Turbo toms for a look over, happily he confirmed my own opinion on the car, that the engine is sound and so is the turbo, he checked ignition timing for me and we discovered it was adjusted all the way to one side at dizzy end.
Ignition timing has made the car a little better but still not right.

We decided next course of action was to get the down pipe off, unfortunately tom was busy with his own jobs so I took my car home.
Any hoo, got home 1st job was a simple one, we were worried that leaving the original BOV in place as the previous owner had done but with the aftermarket one in place, we might have leakage probs.
I created a bung to block this off, took the car out and it was markedly better, this current setup will be temporary till i can sort out a proper final solution.

The next job proved to much harder and less fun #-o

As most jobs go it started easily, with removal of hot and cold pipes from the intercooler, then Jacked the car up and popped on axle stands and wood block under tyres.
Then the fun began trying to get the down pipe off! :eye: boy!! there isnt much room to play with and the nuts securing it on are so difficult to get to.
Any way after a certain amount of cursing I got the down pipe off.

Why'd you take the down pipe off Paul'y?? :?:

Well I'll tell you, 2 reasons
1 to test the wastegate and be able to see it operating and
2 the gasket was shot at and needed replacing anyway (cheapo gasket)

I'm hoping the exhaust manifold gasket is ok as i dont want to have to take the mani off if i can help it.
The exhaust system sounded blowy, I had already found a leak on the underside of this gasket(wastegate-downpipe) but with the hot cold pipes removed, could see from above the top was shot at too, Hopefully this was the only leak/blow.
One partial theory is the leak/blow post turbo may effect negatively on the exhaust back pressure????
But even if it doesnt, that gasket needs replacing and wastegate testing.
Next job today Is to check the cam timing.
I'll pop some pics up later :-$


Pretty sure theres a post from you saying it goes like a stabbed rat bewtween 5-7k...? If this isnt driving it hard then I dont know what is.... we are only trying to stop you from doing more damage if theres an underlying issue.... Unfortunately that means coming across a bit blunt sometimes.

On the other hand, atleast you got it checked out and engine is good..... what were your compression test results?
masterbateson
Posts: 547
Joined: Sat Jan 24, 2015 7:09 pm

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by masterbateson »

BTW guys and just for the record and all that!

I dont mind people popping advice on as far as words of caution, I'm glad other people are as concerned for my car and engines wellfare as I am.

And to be fair as no one on here knows me from a bar of soap, it could be easy to assume I dont know one end of a spanner from the other.

Ta for your posts Nic and 2mad, I havent had a chance to read your links yet Nic as busy bashing tiles off bathroom walls.

That 12 volt mod/bodge :lol: I take it thats shorting out pins on the EFI so it stays at 12v? think I have read that b4.

Getting that Down pipe off was a real PIG!!! ](*,) had to take oil filter off to get at one Nut.

This wet towel jobby to check for leaks, do we think we can do this at exit of turbo whilst i have down pipe off to check exhaust manifold isnt leaking?
and by that do we think I could do it safely? would only need to have engine running for a few secs of course.

Where do you guys source your gaskets from?
I want some nice multi layer metal ones, not the cheap cack that was on.
masterbateson
Posts: 547
Joined: Sat Jan 24, 2015 7:09 pm

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by masterbateson »

Unfortunately my compression tester hasn't arrived yet from mr Ebay.
Mr Mr2 expert Tom didn't seem to think there was anything up with either the engine or turbo so he didnt check.
Of course to be sure I will be testing once I get my tester.

Presumably I could still do this test with the downpipe off??
what do we think? should be ok I guess.

I prob exagerrated re revs as when testing, prob more like 4k-6k and only for a short period.
But like you said, appreciate the concern/best interest.

:thumleft:

Anyone know some rough ballpark figures for compression test?
JD
Posts: 2888
Joined: Mon Apr 16, 2012 6:23 pm
Location: The Far East

Re: Help!!! advice needed, error 34 and no ooomph!!!

Post by JD »

masterbateson wrote:Anyone know some rough ballpark figures for compression test?


Depends on the test, but an even figure across the board is a good start.
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