Does anyone know if cam being off by one tooth would set off the CEL for O2 sensor repeatedly? I thought it was set correctly but now can"t locate yellow tool to recheck. I had changed O2 sensor previously and don"t see it being bad already. Anyone with input would be apreciated. Car seems to run fine and gas mileage is about 24 mpg. 96 GL with Vulcan. Won"t pass inspection in NY with light. Thanks, J.