Iowa Chapter Director
Join Date: Jul 2002
Location: Ames, Iowa
The power loss could be a bad TPS (Throttle Position Sensor) it's located on the backside of your throttle body, a little black sensor. It's a potentiometer that tells the computer the degree at which the throttle blade is opened and adds fuel accordingly, BUT on the 4r70w 94-97 birds it also controls the transmission. When it goes bad it sends no voltage to the computer and this affects both the engine and transmission performance. You can test the voltage with a volt meter, the negative lead to the negative wire, and the positive lead to the sending wire. When my TPS went bad on my 95 v8 it also through o2 sensor codes, so Id check out the TPS.
Bad smell from exhaust probably is a bad cat, not necessarily a clogged one. When the cats get old they give a sulfuric smell like rotten eggs.
1988 Notch Mustang: - 438W, direct port n2o, t56
2003 SVT Focus: - SCT X3 tuner