My Crossfire has had this occasional issue since I bought it. If I'm driving along under constant throttle and hit a bump (usually a more sharp bump...like an uneven expansion joint) it will hesitate and feel like it has a mild misfire. It never has any codes stored. One time I was on the highway and hit a bump and it lurched and had a large "misfire" and the check engine light lit for a split second and went out and the car ran fine....with no code stored.

Any ideas? BTW, the CPS was replaced over the summer. Could it be RCM?

Thanks.