Diagnostic Aids
WARNING: This page is about a different car, the 2000 Pontiac Firebird, 2000 Chevrolet Corvette, and 2000 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
An intermittent DTC can be caused by Electromagnetic Interference (EMI). Inspect related circuits for being too close to secondary ignition wires and generator.