Two days ago on my way home my car stated losing power. The rpms would drop every time I would press on the gas pedal. I was able to limp it home by barely giving it any gas. Since then I have cleaned the throttle body, the IAC, the TPS, checked the FPR and replaced the fuel pump and fuel filter. Also checked the fuel pressure and it is at around 12 psi at the fuel rail and also right before the fuel filter coming right off the sending unit which seems rather low. Also took out and cleaned the spark plugs which were pretty black. After all that work the car will start but whenever I give it gas the rpms drop and it will not run steady at all. I pulled off the hose coming off the intercooler going into the throttle body and sprayed starting fluid into the intake and it wakes the motor right up. Also checked the plugs after just a few minutes of running the car and they have quite a bit of carbon build up on them after running it only a short amount of time. It seems like there is a fuel delivery problem but what else could be the cause?
Saturday, September 3rd, 2011 AT 4:56 AM