mine just started doing a simular thing. only does it after its warmed up and i shut it off for a short time and restart. then it runs crapy at low rpms untill i get on it. then it clears up. the car wouldnt start once, it clicked and after turning the key off and to the start position it started right up, thats when it started doing it. has not done the click again and has started every time. i did change the setting on the tps to get it to idle a little lower before this. (have a bbk tb and they say i may have to do this to tps for idle) im hoping thats it so i will change it back a little and see if it helps. still cant figure out y it wouldnt start that one time. checked all wiring i could think of and all good. have replaced in the last three months, opti, coil, ign module, plugs, plug wires, 02 sensors, starter, tb, air intake. im hoping its not a wireing issue i hate searching for them. one lousy lose wire can screw the pooch. i suppose my msd opti could be acting up. u just got yours replaced to right. if u get it figured out let us know.

 

I got up this morning and was going to drive it over, but it wouldn't start. I guess the ignition switch/module burnt out last night. So it was on a tow truck again heading over there. But my problem has got to be in the steering column, either a chaffed wire or the steering rod is actually grabing and pulling a wire(s). But now that's it's located to the steering column, I expect to have it figured out and back either today or Monday. I will post up exactly what was happening when I get answers so maybe this thread will help someone down the line.