redhawk27

My sti¨s boost is so strange right now it usually loads 1.4 but now its limited to 0.9. but if i disconnect the battery and reset the ecu it goes back to normal for awhile.

what could this be? I nedd help asap

ossett2k2

iTrader: (9)

A bit more info on your car will help.
1.4bar isn't stock boost,I believe on your car it should be around 1bar.

Is your car stock or modified? Have you had a remap?
The fact that it's higher(1.4) after a reset might indicate a problem so when the ECU detects this it will pull the boost and/or the timing back to save your engine from an early death.

redhawk27

My car has had a stage 1 tune and some parts switched from a previous owner so like a new fuel pump and new injectors and exhaust and a tune on that.

Gooch89

iTrader: (1)

Sounds to me like you're getting actuator pressure - possibly because the car has detected a fault and is cutting boost.