Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc p050b cold start ignition timing performance

Subaru Legacy BN/BS (2015-2019) Service Manual / Engine (diagnostics)(h6do) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p050b cold start ignition timing performance

NOTE:

For the diagnostic procedure, refer to DTC P050A. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P050A COLD START IDLE CONTROL SYSTEM PERFORMANCE

1. OUTLINE OF DIAGNOSIS

NOTE:

For the detection standard, refer to DTC P050A. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P050A COLD START IDLE CONTROL SYSTEM PERFORMANCE

Dtc p0512 starter (switch) request circuit

DTC DETECTING CONDITION:Immediately at fault recognitionTROUBLE SYMPTOM:Failure of engine to startCAUTION:After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPER ...

Dtc p0507 idle control system rpm - higher than expected

DTC DETECTING CONDITION:Detected when two consecutive driving cycles with fault occur.TROUBLE SYMPTOM:Engine keeps running at higher speed than specified idle speed.CAUTION:After servicing or replacin ...

Other materials:

Inspection
1. CYLINDER HEAD1. Visually inspect to make sure that there are no cracks, scratches or other damage.2. Use liquid penetrant tester on the important sections to check for fissures.3. Check that there are no marks of gas leaking or water leaking on gasket attachment surface.4. Check the warping of th ...