running out of ideas now. just re checked all vac and air pipes all tight and all look good

 

Try another MAF if you can get hold of one.

 

Had 0.8 bar for 25 miles today!!! was great pulled very well Then overboosted and dropped to 0.4 bar again. going to strip the whole air/ vac system on the weekend maybe renew/clean all vac pipes. freshen it all up.
such a small problem but soooooooooooooo annoyng!

 

Sorry to butt in, I have the same problem, very intermtitent with boost, whether I get full or half is pot luck, but I alwasy hear it spin.

Sorry guys, but I am a complete beginner, only had my 97 import few weeks, and I have no idea what MAF, ECU, etc is.

My dump value just arrived in the post today, Bailey twin piston, a friend who has a clue is fitting it this wknd,

What should we look out for/clean ? any pics would be very helpful

Thanks

 

MAF is Mass Air Flow sensor it's on the airbox with a connector on it.



The black box just to the left of my induction kit.
Just above the induction kit is the boost solenoid which may need a good clean with brake cleaner done the pipes.

ECU is the brain of the car under the passenger footwell kickplate

 

Its only overboosting in first and second..........3rd 4th 5th are ok???? does that mean anything 2 anyone?

 

Now its overboosting to fuel cut off in 3rd 4th 5th only this is doing my head in !!! going to fit dawes on it next week see if that makes difference

 

have you got the brass restrictor in the bottom hose from the boost control solenoid ?

 

not sure, thats the one you have to drill out?

 

does it go in to the resonator box?