Misfireing with small throttle opening.

[Phattlard]

Alright, I'm trying to diagnose a missfire issue. Thinking maybe this is part of it.....tell me what u think. If i open the throttle a hair, tiny amount, the car stumbles, almost stalls soemtimes, but just pops and shit. 91 TT.
Other wise it misfires under load, and clears up at WOT.

Pressure tests have been done.

[alottaboost]

throttle position sensor? maf sensor? i'd check those out first.

[Phattlard]

thanx for the reply. swapped them both already with my other car.....

[alottaboost]

i'm not super familiar with these cars, but my dsm had a Base Idle Set Screw (BISS) o-ring that, when leaked, caused a similar idle