The exhast smells really lean to and There is pretty good fuel pressure I checked the spark plugs and they are black from running lean I checked all the plugs and there is no sign of a leak all are black.
Sparkplugs that has a black dry soot on it is running rich instead of lean or a weak ignition
You can check the Cat by using a vacuum gauge or pressure gauge or disconnecting the exhaust pipe on the exhaust manifold or before the Cat.
I recommend you actually check the fuel pressure with a gauge as suggested earlier and the IAC motor, MAP and TPS sensors
Sunday, September 13th, 2009 AT 11:20 AM