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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P050B: - Cold Start Ignition Timing Performance

DTC P050B: - Cold Start Ignition Timing Performance

DTC P050B: - COLD START IGNITION TIMING PERFORMANCE

Description:  The cold start ignition timing performance has a functional response test of actual spark timing angle actual versus commanded spark timing in the powertrain control module (PCM).
Possible Causes: 
  • Spark timing
  • Spark capture circuit
  • Spark timing monitor
  • Spark capture circuit monitor
Diagnostic Aids:  Diagnose all other powertrain related DTCs first.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Vehicles with coil pack ignition system GO to Pinpoint Test JC .
All others GO to Pinpoint Test JB .
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