Went for a ride in a mates gtb today and it had issues

[Guest]

Was driving along fine and then it starts missing really badly then just died and you have to wait about 20 seconds before you can start it again other wise it won't go also it can't go up hills cause the same thing happens any ideas ???

[Guest]

it's a 96 btw

[funkytown]

what codes is it throwing?

thats a rather non specific fault mate!

[Joker]

what fuel ? excess knock? overboost?

[ADIKT]

its broken

[G-unit]

02 sensor maybe, herd they can play havok when on a incline

[Guest]

No codes ae reset ecu no difference

[neodowd]

Plugs, coil?

[Guest]

But it starts and runs fine boost good as just when your going up a hill or driving along it misses / splutters really bad then dies?

[neodowd]

Well if the plugs are bad it sometimes only makes car miss when under load eg boost or going up hill. If your not showing any cels I would check plugs,coil leads etc.

[Guest]

yeah maybe the plugs first

[Guest]

Is it a turbo? Check ALL vac lines!!! Can't stress that enough. Even if the hoses are on just make sure they are all tight and relatively hard to pull off and cable tie the ends of all of them. I had the same problem with my rs for a while but not that bad. Try running wastegate pressure to bypass solenoid in case that's faulty. After all that check plugs and coils and also clean out throttle body and icv and see if it makes any difference. This is the most cost effective way IMO. Have fun

Cheers muhammad

[Guest]

Derp!!!! Just read that it's a gtb lol

[Guest]

does sound very ignitionish being under load.

[Guest]

 evowrx said:

does sound very ignitionish being under load.

this is a reasonable explanation but just because its spitting doesnt mean its ignition issues. It can be ecu being fed wrong info of air intake. It could be boostcut as it doesnt happen at lower rpms? I had a vac leak in my car but it would make it to the top of a hill and then decide to shit itself. Also could pay to check your fuel pump is not playing up and check the fpr. Is it possible to check the o2 sensor by unplugging it and see if it gets worse? Because if its bung there should be no difference? Im putting my money on a vac leak of some sort :-)

[Guest]

just read happens at low rpms too :-/ fuel pump could be playing up. Happened to me when sti fuel pump wasnt sitting properly

[Guest]

Haha so much stuff that could be wrong :-\

[Guest]

 4U2Envy said:

Haha so much stuff that could be wrong :-\

I know what you mean aye :-/ but give it a go and when you fix it it will feel awesome

Try the vac lines first as that's the easiest

Wait... It's a twin turbo... -.- have fun lol

[Guest]

vacuum leaks normally causes fluctuation in idle. could be anything though, dieing afms a possibility. just keep unplugging stuff till you dont notice a difference as above. its easier and cheaper than replacing stuff unless you have a friend with the same car.

[Guest]

I have a purple afm and a brown sticker ecu for a gtb maybe give them a try ?

[tssupremacy]

Sounds like the MAF. My 96 was doing the same thing (not just up hills). Replaced afm with a secondhand one - all good. You need an orange one because it's a gtb. You should be getting a CEL code though - check your CEL bulb?

[mondo]

If it does it when going up a hill, could be a fuel pick up issue, might need to pull the fuel pump and have a look whats going on .