Hello, and thank you for allowing me the opportunity to help you. If I am not online when you are, please allow me time to return. Did the check engine light come on at all when this happens? Does this typically happen when going straight or turning?
The check engine light came on and stayed on. It happened when going straight. Several times on restart the engine power reduced signal came on also. Several restarts where required to reset everything when this happened. I used a Can OBD2 code reader today and got a random misfire code P0300. does this help?
car purchased used 114600
throttle body and gasket replaced at 116329
special wiring from throttle body to ECM at 116418