i wonder if any one can help me out , filled car up yesterday with optimax , nowi dont know if its a coincidence but noticed my boost pressure dropped from the usual 15 psi to around 8 psi on hard acceleration, my car is a my 95 wrx the car now seems alot slower compared to previous , could this be the fuel used or does it sound abit more serious , iv,e also checked all boost pipes etc all sound , does anyone recomend somewere i can take me car to get checked over or is there somthing i could do , im from the north east.
help ...

 

If you look HERE its shows how to carry out ECU diagnostics to see if the cause was Sensor related. It looks as though the ECU has switched to safe mode

Cheers

 

well just performed a ecu check and no faults were found , anthing else im not thinking of looking at anyone can help me with ??

 

Try cleaning the boost solenoid with brake cleaner as it may be sticking

Cheers