Diagnostic Aids

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The following conditions may cause an intermittent malfunction to occur:
- The PCM is unable to process the correct RPM data.
- Intermittent or erratic RPM signal sent from the PCM.
For intermittents and poor connections refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.