Rough, Unstable Or Incorrect Idle & Stalling: Sensor/System
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the crankcase ventilation valve for proper operation. Place a finger over the inlet hole of the valve end several times. The valve should snap back. If not, replace the valve.
- Use the scan tool in order to monitor the Knock Sensor (KS) system for excessive spark retard activity.