May 24, 2012 · $7E8 & $7EA Code Causes Picture OK, here's the pic of the broken flex pipe and the repair part: (And MANY THX to Greybeard for pointing me to the posting procedure. The engine light came on and we checked the codes and the code came up $7E8 and $7EA. we believe these are generic codes and the $ could be optional 7E8, 7EA. Cat failure.
OBD2 Code P0442 Buick definition: This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04″ in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle’s fuel system.