Diagnostic Aids

WARNING: This page is about a different variant/trim than selected.

A skewed or stuck ECT Sensor or IAT Sensor will cause the calculated models to be inaccurate and may cause this DTC to run when it should not. Refer to Temperature Versus Resistance (Engine Coolant Temperature Sensor) .
The barometric pressure (BARO) that is used by the ECM to calculate the air flow models is initially based on the MAP Sensor at the ignition ON. When the engine is running, the ECM will continually update the BARO value near WOT using the MAP Sensor and a calculation. A skewed MAP Sensor will cause the BARO value to be inaccurate.