Hello everyone, ive been trying to figure out a rather interesting mix of codes on my 91 Legacy AWD 5-speed with 185k, ive got so far code 22(knock sensor),23( maf),24(Iacv),33(vss), and 49(improper maf). I have installed and new knock sensor and cleaned the iacv already but no luck, i have tried an extra maf and it actually seemed to run worse with it on lmao. I know the vss code had been on the car before all this but it would only read when connecting the jumpers and not illuminate while operating the car. ive done some research and the next thing i wanna try is to change the coolant temp sensor but not sure where to go after that. Hopefully someone can chime in with a few ideas
The car runs well other than sometimes it will almost stall after heavy acceleration and it experiences a loss of power when the CEL is on.