Incredible Corvette C6 Check Engine Light Ideas. Dtcs p1967 (serial data message safety performance 1) and/or p1968 (serial data message safety performance 2) may be set in the transmission control module. The service dept at the dealer says i need a new catalytic converter.
It tightened fine after filling. The most commone one is leaving the gas cap loose. The check engine light has been coming on lately.
