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Home >> Jeep >> 2005 >> Wrangler X, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 627 (Powertrain Diagnostic Procedures - DRIVEABILITY - Gas - Symptom & Diagnostic Tests (DTCS P0031 To P1899)) >> DRIVEABILITY - Gas - Diagnostic Tests >> P1398-Mis-Fire Adaptive Numerator At Limit (Gas - Except NGC) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. ADAPTIVE NUMERATOR RELEARN
  2. CMP SENSOR CONNECTOR/WIRING
  3. CKP SENSOR CONNECTOR/WIRING
  4. DAMAGED TONE WHEEL/FLEX PLATE (CRANKSHAFT)
  5. CRANKSHAFT POSITION SENSOR
  6. PCM
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