Hesitation, Sag Or Stumble: 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 Manifold Absolute Pressure (MAP) sensor operation.
- An extended travel brake switch that is mis-adjusted or an extended travel brake circuit that is open causes a perceived misfire under heavy load conditions from a stop. Use a scan tool in order to monitor the extended travel brake switch parameter. If the scan tool displays extended travel brake switch applied when the brake pedal is released, see DTC P1575: EXTENDED TRAVEL BRAKE SWITCH CIRCUIT in SELF-DIAGNOSTICS - 5.7L CORVETTE article.