alright guys i need some help sourcing out the root of my problem.

here are the symptoms...

while driving at partial throttle the car bucks and stumbles and really drives strange. while letting the clutch out in first gear if i dont give it a lot of throttle, the rpms drop to almost nothing and i have to re-clutch and give it more throttle.

once in gear and rolling at partial throttle the acceleration is very choppy and the car bucks and stumbles.

for example while driving along in 5th gear at 60 mph and i give it gas, it jumps around and until i move the throttle is smooths out a bit, but still not typical smooth acceleration. this is the same with all gears.

my first instinct was the TPS. i changed that, and it worked well for a couple days, but now its back and might be even worse. when i changed the TPS it was totally back to normal. when i first changed the TPS i did not have a ECU fault code for it, but i changed it anyway.

now when i pull the codes i get 0706 = fuel injection system lean or rich (right bank) i did have have that code prior to initally changing the TPS.

the haynes and the FSM do not have diagnosis on this particular code (0706). but for the other similar codes.

my question is what could be causing this type of problem. i cant see, hear or feel any type of air intake leak. the car revs above 2500 fine so that deturs me from speculating the MAF. only other things i can come up with are fuel pump, injectors, fuel regulator, or oxygen sensors.

i picked up another replacment TPS, but i dont want to change it until i can figure out what is making it go bad.

i forgot to mention that the car shuts off if i dont work the clutch correctly while going from a stop. i have to give it a ton of gas. it shut off on me twice yesterday while in traffic. i had to pull off to the side and it took 10 minutes to get it started again. it feels like its flooding itself. but idle feels totally normal. and it drives fairly normal in the first couple minutes of start-up after sitting for a while.

any thoughts or help on this is great appreciated guys. thanks for reading.

--Paul

 

Shake the harness going to the MAF. I had the same problem and the wire had broken inside the insulation. Make sure the plug going to the TPS is plugged in all the way. You should hear the snap.