I bought a 94 ford ranger 2.3L from an auction, Ran great of course til I got it home. Started to loose power when I pushed the accelerator it acted as if I hadn't pushed on it at all. I got some codes from a reader, 157, 159, 116, with key off, with key on 412,538,521. After using a Ford Site for help, I started trying to figure out what was wrong. I started by replacing wires and spark plugs. I cleaned the MAF and IAC with cleaner. Those didn't work. Oddly when I unplug the MAF, the truck seems to run find outside of the Service Engine Light being on. Plug it back in, and the truck with either die or idle badly for a few minutes and die. I bought a new MAF and IAC, put them both in and it's changed absolutely nothing.
I'm sort of at a loss now, what to do, any ideas. I'll be running out of money soon.
Thanks for your feedback.
Wednesday, February 9th, 2011 AT 2:13 AM