Hi recently my car has started to hold back when I'm on boost in first gear
It just feels very flat and only boost's to about .9 bar but second third gear
is OK boosting right up to 1.4 bar only some times holds back in second or third at high rpm and also the idle gets a bit lumpy when hot.
plugs are new ngk 7 with .6mm gap. can this be my z32 maf starting to fail.

 

1.4 BAR? That's 20 PSI mate what spec are you running?? Type of scooby etc

EDIT...

Just read your spec in your garage! lol

You must be running over 350 with that lot? I'd say it's either your MAF with the idle being funny or maybe MAP sensor? Warm weather won't be helping either

 

its a UK 94 turbo
new coils
new plugs
power fc so map sensor not important .
do you think it can be the z32 maf ?

 

up

 

you get them v4 heads fitted ok that i sold you???

 

hi mate thanks very much for the sti v4 heads still building up my parts for my bottom end. I have replaced my blown UK engine for a wrx engine but now
its giving me some small issues ?

 

?

 

whats the apexi saying in the ect - sensor menu ???? just left you itrader feedback for heads could u do the same