After running the car for 10-15 minutes it begins to hesitate under light and medium throttle and only under load. It has recently started being a bastard when I slow down from normal driving speeds to idle also. It will drop the revs down to 500 or so and seem to REALLY want to die. I think the only thing keeping it alive when I am in traffic is the fact that I can hold the break down and use the 2800 stall TC to keep the revs up around 850-1000.(Car is programmed to idle at 850). The plugs and wires are all new this year and I have the OTVC kit. I replaced the ign. control module hoping that was the problem but it didn't help. The car is at a buddy's place now and will be getting a new opti(it still has the original at 67K) and electric water pump. The weird thing is, I have seen only a very small loss in power.(Car dynoed 351rwhp in July and 340 last sat.) Any ideas???

 

Ttt