Originally Posted by mashford
I'd take a look at the throttle position sensor set up. Make sure both sides are the same. What tuning are you using? Vec or SCT?
Iam also thinking ECU needs to relearn a few things. Car stalled on me today while coming to a red light but seemed to get better after a few off and on of the engine (stalling went away) I feel like ECU is still learning after reset. But I could be wrong. Its winter here and going to be difficult to get a 5 full cycles on it.
It never stalled before but after I cleaned the a few sensors so I feel like the sensors are also dirty and after cleaning the ecu is relearning new signals. BUT slight hesitation on deceleration is still there. Only happens once warmed up doesn't happen on cold engine.