Trouble Code Conditions

Condition(s)
- The engine control module (ECM) compares the signal from the mass air flow (MAF) sensor with the signal from the throttle position (TP) sensor.
- Diagnostic trouble code (DTC) EFI-355 is stored if outside temperature exceeds -10°C (+14°F), engine coolant temperature (ECT) exceeds +80°C (+176°F) and engine speed (RPM) exceeds 1,800 rpm and the relationship between the mass air flow sensor and throttle position sensor is outside its permitted range for 19 seconds.

Substitute value(s)
- None.

Possible source(s)
- Defective mass air flow sensor.
- Defective throttle position sensor.

Fault symptom(s)
- None.
- Start fault-tracing. Faulty Signal