Vehicle Surges Or CHUGGLES: 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 Heated Oxygen Sensors (HO2S). The HO2S should respond quickly to different throttle positions. If they do not, inspect the HO2S for silicon or other contaminates from fuel or the use of improper RTV sealant. The sensors may have a White, powdery coating and result in a high but false signal voltage rich exhaust indication. The PCM will then reduce the amount of fuel delivered to the engine causing a severe driveability problem. See appropriate article in ENGINES.
- Inspect the Mass Air Flow (MAF) sensor connections. Repair or replace damaged terminals.