Tech Tip - N16 Pulsar idle fault
Symptom: Low idle, stalling, erratic idle, high idle
Cause: A common fault with the N16 is with the idle speed stepper motor assembly. The coolant leaks through the aluminium housing causing the electrics in the idle motor to fail. In the majority of cases not only is the idle motor assembly damaged but causes the ECU idle driver circuit to fail.
Remedy: If the idle motor tests faulty then the motor will need to be replaced. As it is very common for a faulty idle motor to cause damage to the ECU then it is highly recommended to have the ECU tested. AFI can test the idle motor and the ECU. Read more. AFI also provide repair/parts packages for the ECU/motor some of these are detailed below or contact your local CoolDrive EFI Division for more information.