Removed the cat today and found no difference except before the rpm will goes up faster instead of stay at the same rpm
. Re chk all the hoses today and everything seems to be in good order. I am pretty sure now the problem come when my turbo guage hit about half way of the white which i assume it is about 10psi. I started to think if ecu cut the fuel when it hit 10psi. My machanic thinks it might be the fuel pump is not running well or something wrong with the throttle body. Since I don't have any error code and I don't think it is air flow sensor or the idel control. Bracer suggested it might be the electric valve and I don't think it is the case since I am also having rough idel (is not going up and down but you can feel it is not stable) and the valve cost 250 and I don't think I will take the risk to spend that money.
My machanic and I have been thinking all the posibility but we just can not come up an answer. The other way is to start changing all the parts until it is ok but of course it will not worth to do. a 10 years old 2nd hand car is very cheap here and parts are so expensive on Volvo. If I have to change the throttle body, the electric valve, fuel pump, my final bill will cost more than what the car worth and I am not in a position of get another car since mine is in very good sharp except this which probably cause by me playing with the wastgate in the first place.
Can someone please help me think what else i should look at or anyone have the problem I am have.
Bookmarks