P0078

P0078, P0084 EVT CONTROL MAGNET RETARDER




Description
Exhaust valve timing control magnet retarder (1) controls the shut/open timing of the exhaust valve by ON/OFF pulse duty signals sent from the ECM.

The longer pulse width retards valve angle.
The shorter pulse width advances valve angle.

DTC Logic




DTC DETECTION LOGIC

Step 1-2:

DTC CONFIRMATION PROCEDURE

Step 1:

Step 2-6:

Diagnosis Procedure

Step 1-2:

Step 2 (Continued):

Component Inspection