My 2008 Exige S240 track car has developed a misfire that occurs only in left hand turns. It runs normally on straights and right handers. It's not fuel starvation as I have a baffled V2 tank and it was full. When it misfires, A/F gauge goes to 10. Scanner showed cam sensor fault, replaced it, no change. I've checked thoroughly for loose wires and wiggled all the ignition related wires with engine idling. Has anyone else seen this? Any suggestions?