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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostics) (P0171 To P0685) (H4DOTC) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P050A Cold Start Idle Control System Performance >> Diagnostic Method >> Final Ignition Timing Diagnosis

Final Ignition Timing Diagnosis

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Final ignition timing - ignition timing during CSERS*
*: Ignition timing during CSERS
(Cold Start Emission Reduction Strategy) = Base ignition timing - retard amount
> 12°CA

Time needed for diagnosis:  7 seconds

Malfunction indicator light illumination:  Illuminates as soon as a malfunction occurs.