Lend me your collective thoughts on what could be the problem, :)

 

My Check engine light keeps coming on, sometimes it comes when you give it a stab, it'll cut power for a split second then the light comes on and most times it goes off again.

Other times just driving up the highway the light will just come on and won't go off till you shut the car down.

 

Timing belt was done at 109,000k's (now up around 140,00k's)

Oil is fine

Engine temp runs around 80*c average (splitfire gauge).

 

Could this be poor tuning?? or a faulty sensor somewhere??

 

The boost has been increased from standard to 11 psi, standard turbo will take 14 and the cut out (that's when the ECU says stuff you and lock's you back to 5psi) is about 13.5 psi and i'm getting nowhere near these levels.

 

Any idea's????

Edited June 5, 200521 yr by Northen Rolla

And that would be mounted where?? down near the cat converter??

Yeah it was located after the stock cat converter which was directley off the dump pipe, but when i had a custom dump made the new cat got put down below the fire wall, thus relocating the sensor. i'll check it out.

 

Cheers

does it have a diagnostic plug?

what sort of computer do you have?

whats the engine,model,year?????

 

there are about forty different reasons the engine check light comes on.

 

need more information.

does it have a diagnostic plug?

what sort of computer do you have?

whats the engine,model,year?????

Yes

Stock

3ETE (1.5 SOHC 12v turbo), 86 model GP turbo