Check this one out. I’ve got an '01 Ford Taurus. It idles fine. If I step on the accelerator pedal very gently, the car starts to go forward a little. But if I press any harder, suddenly I lose all my power. I’m guessing somehow the fuel injection system is not increasing the amount of gas to correspond to the increased amount of air and the mixture is leaning out to nothing. Maybe a throttle positions sensor? I’m sure somebody has heard of this?
When was the last time the fuel filter was changed?
2 years. I don’t think that would cause such a sudden malfunction. This seems like a computer problem - especially because it is raining today.
Check the air filter.
Tester
LOL. Nevermind! After driving all the way home from work with people honking at me because I could barely accelerate… I have found the problem.
Several months ago, my EGR backpressure sensor went bad. In the process of diagnosing that problem, I had back-probed that connector with a paperclip. Doh. I took out the paperclip and now it seems to run fine. 