92 400e sloooow throttle response
 

Anybody got any suggestion on what might cause slow throttle response? And could it be linked to my long cranking? New parts, harness, caps rotors, coils, cps, wires, fuel pressure reg, cts, all new vac lines?

Its a non ASR, 48 state car right? With no CEL?

....ME Too !!!
 

David Henry

.......I dont know about the original poster But i have the EXACT same issue with my 92 400e (Sloooww Throttle Response)....

YES i Have the NON Asr vehicle with NO CEL (Mine has the O2 light)
.......Whats Your advise/suggestions/diagnosis,etc.??? THANKS Chance

Is it on the original throttle actuator? If yes, get it rebuilt.

Car has ASR NO CEL tho

Mine too, but not all the time. When it is cold (first started) it is very very responsive and the pedal is like a hair trigger. As soon as it warms up and the upshift delay goes off, it is like an old Buick. (not that there's anything wrong with Buicks). Before the major tune-up, caps, rotors, wires, coils, fpr, fuel filter, it was fine cold but horrible when it warmed up, like I had to put it in Neutral at red lights so it wouldn't conk out. I am rebuilding my engine wire harness and ETA harness right now.