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P050B - Cold Start Ignition Timing Performance

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
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   refer to PINPOINT TEST JC .
All others   refer to PINPOINT TEST JB .
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