Additional Symptoms Tests: Surges/Chuggles
WARNING: This page is about a different variant/trim than selected.
- Verify that each injector harness is connected to the correct injector.
- Inspect the mass air flow (MAF) sensor for obstruction, contamination, and damage. Refer to Intake Air Pressure and Temperature Sensor Replacement .
- Inspect for slow responding heated oxygen sensors (HO2S). The HO2S should respond quickly to a change in throttle position. If the HO2S do not respond to different throttle positions, inspect for contamination from fuel, silicon, or the incorrect use of RTV sealant. The sensors may have a white powdery coating and result in a high, but false, signal voltage, which gives a rich exhaust indication. The PCM reduces the amount of fuel delivered to the engine, causing a driveability condition. Refer to DTC P0137, P0138, P013A, P013B, P013E, P013F, P2270 or P2271 for more information.