I just got this car and I am trying to fix it. On light throttle it intermittently bucks. Feels like she is possibly stalling and restarting itself over and over. My theory is fuel or ECM. my question is: does the computer go into a different program on light throttle?

foot off the acceleratot is fine, and WOT she runs fine but cruising at 60 is a nightmare.

The MAF, Fuel Filter and TPS are new. TPS is at .54v. Plugs, wires, rotor and cap are new. SES light is usually on and codes 22, 33 & 34 are showing.

Does this sound like it could be a bad computer or chip? How hard is it to widen the threshold for MAF?

 

Your new TPS, is it a Wells brand from Autozone? If so take it back get your money and go get a real TPS. I had the same problem with the same codes a few years ago. I paid about twice as much for another TPS but the problem ent away.