P0501

Read the instructions below then start the fault diagnostic procedure.

Symptom: CHECK ENGINE lamp (MIL) comes on, deteriorated idle control

P0501

Fault symptoms

CHECK ENGINE lamp (MIL) comes on, deteriorated idle control

Conditions

Wheel speed less than 2 km/h (1.3 mph) at the same time as the engine is loaded and the engine speed is greater than 2600 rpm.