Hi i posted a thread the other day as my 97WRX doesnt seem to pull as hard as it used to, im wondering if it could be MAF or AFR sensor related what do you guys think? It doesnt hunt on idle and it doesnt hesitate, just lacks the punch it once had

 

Where do you start!?

Blocked air filter?
Air leak?
Oil in the boost solenoid pipes?
Collapsed Cat?
Worn turbo?
etc etc.

Think you will need to take it to a specialist.

Mark (speaking from experience)

 

Boost solenoid is clean as i cleaned it the other day, i dont think its an air leak as it is hloding constantly no pulsing etc, could be the CAT? its booked in at the end of the month for a decat and a power run so this may be able to identify any problems

 

Had similar grief with mine.

They adjusted the wastegate and that seemed to help a lot.

 

a freind of mine said just the same, will this decat increase the boost? i have a full system as well and an induction kit, if it does increase, in turn will the wastgate need to be adjusted? Thanks for the feedabck

 

I am not an expert, but would not think it would increase the boost level as this is regulated by the wastegate via the solenoid.
It should help the turbo spool up more quickly though, reducing lag.

 

Or it could be that you are just getting used to the boost

Only saying that as it says 54 posts

Muscles in your neck getting more adapt