Happy Sunday!! Shaking my head trying to figure out what happened to my corvette last night. As I was leaving my friends house to come home, the car started cutting out on light acceleration, idle was fine. But any steady throttle and she was start bucking, like I was turning the key off and on. Earlier that day I took a friend for a ride and drove her like a rental car, hit 125+ in 3rd gear and still pulling hard). It would idle just fine, or if I got on it was just fine, just anywhere from 2 - 3K RPMS it was like I was turning the key off and on. Finally a check engine light came on. I was still about 35 minutes from home, but I finally did make it. Got home and ran the engine code. The only thing it showed was a "drivers side power window motor actuator error". I was like "Huh".. How would a power window motor (which still works fine) cause the car to cut out like that. Cleared the code and went to bed. Got up the next day and took about a 15 mile ride, side roads, interstate, a few hard 1st / 2nd gear pulls and all is well. Ran like a top. Took a ride today and the same thing started yet again. No codes, just the occasional bucking when at a constant throttle. The car has AMR long tubes, Vararam, and a HP tune, but that was done almost a year ago, and has ran fine up until this started. Any ideas on where to start?

Thanks in advance!

 

Weird part is that I'm not getting any codes. No check engine light and the codes, albeit with the engine off, are none. Do I check the codes the same way with the engine running as I do with the engine off and just turned to the "On" position?

 

Missing with no codes, I would check the plug wires

 

my car does the same thing once every 4-6 months, its the weirdest intermittent thing ive ever dealt with. also no codes no matter when i check it.

 

Clean all your engine grounds.