ok so my 1994 corvette has recently picked up a consistent problem on take off. although it doesn't happen every time but it does do it probably 7 out of ten times now. from a stop of at idol, ill try to press the throttle to start moving itll hesitate and then jerk to a higher rpm to actually move. i tried to slowly rev the engine in park to watch the rpm and itll idol anywhere from 500-750, then as i press it as slow as i can it'll stay at idol for a little while and then suddenly kind of cough up some rpm and jerkily make it up to about 1100ish, and if i press the throttle harder or faster itll do the same thing but jump to a higher rpm and launch the car, it makes take off at lights slow and annoying and im not sure what could cause it at this point, i tried using MAF cleaner a couple times as ive been told it could be an issue but i used pretty much the whole damn can to clean it and no results. i just need to know where to look or what i should check next.

1994 C4 base 4l60e auto, only mods are a full 3in exhaust.

if it would help when i get back to my house after the weekend i can try to get a video of it. another note to be said is that the severity of the hesitation is inconsistent and wild. sometimes only a very slight bit and others itll have me lagging for several seconds.

any help would be appreciated. -Blade Malone

 

Throttle position sensor? Not sure how the lt cars operate but I'd look into that especially if it is only at that throttle input. Could have a dead spot.

 

That's where I would start too!

Many digital VOMs also have a pseudo analog bar graph - specifically for just such a test to check voltage linearity. You can quickly find out: With the ignition switch ON, but engine not running, monitor the TPS voltage from idle and slowly increase throttle position. (I don't have a FSM for that MY car, Someone will have to help you with the wiring colors and probe the tps voltage output line.)

What you are looking for is sudden irregular voltages or complete drop out in the vicinity of where you're experiencing the problem. If so, then you have confirmed the culprit!

Good hunting!