Fiat Grande Punto 1.4 T-jet 120km no power
Hello All,
I have been fighting with my car for some time now and cannot find a cause of the problems. Car was running perfectly for a long time and one saturday I arrived home left it in the garage and on Monday it started to feel a bit weak. Right now it runs ok while idling but under load it doesn't have any power and barely moves forward. While revving it without load it hasitates from idle up to 3500rpm and then revs ok. There is no codes in the ecu. I checked wastegate and it moves as expected by hand. Right now while connected to a computer I can see that while under load expected boost pressure was 2 bar while the actual value was 1 bar but the turbo is still pumping something beacuse i can hear the blow off valve releasing pressure. The car also runs rich as expected and you can hear the fuel being detonated in the exhaust. I started with replacing the fuel pump as it needed it either way and the lambda sensor. The throttle body was checked and works fine.
Has anybody had this kind of a problem and could point me in the right direction on to what to look out for?
Thank you!