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2021
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Cherokee Trailhawk
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Repair and Diagnosis
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Engine Performance
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System
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3.2L - DTCS P0300 To P054A
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DTC Troubleshooting
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P050B-Cold Start Ignition Timing Performance
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Set Condition
Set Condition
The Powertrain Control Module (PCM) fails the Cold Start Monitor if the average spark advance is above the threshold, too much spark advance, for 4 seconds.