I have a TII which won't idle and bucks/stutters super hard over 30% throttle. I've timed the car, checked the main ground, replaced the battery, changed the spark plugs, changed the tps twice, changed plug wires, and changed the fuel filter...I'm checking the injectors next...any other ideas?

 

i had a fcd that got dipped in water and did the same things yours is doing. checked/replaced everything without knowing it was the fcd. i pluged the sensor i normal and my car was drivable again. just a thought.

 

I think the injectors will get it probably the secondaries with the over thirty percent thing

 

Thanks for the replies. I'll check that fcd out.

 

My car's doing exactly the same thing, except it smooths out at WOT, and mine is a streetported NA which I've been driving for over 5 months now. DIdn't use to do this, and I still have no idea what it could be, replaced pretty much everything that V8What did, but to no avail. ANy ideas?

 

Yes. Anything would be great to hear...

 

Well, I hoped it would be as easy as the fcd, but it sure isn't. Still don't know what the problem is either...doesn't want to idle either. Do you have that problem too, pr0digy?

 

Clip an Ohmeter on the AFM & work the plunger - the resistor may be worn/dirty/sticking.

 

What should the AFM read?

 

About 4v key on, about 3v at idle, and she'll fall towards about .5v during the hard runs...

You need to read a couple of thing out at the ECU while driving (you guys with the problems), including TPS, AFM, water thermo sensor, the two temp sensors, and the boost sensor...

 

So you're saying that I measure these from the ecu while driving, eh? Should I just find where they plug in to the ecu and stick the meter's prongs next to them?