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






DTC CONFIRMATION PROCEDURE

Step 1-2:

Diagnosis Procedure

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Step 1 (Continued)-6:

Component Inspection

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Step 2: