P1398 - Misfire Adaptive Numerator At Limit Condition

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

P1398 Possible Causes

  • Faulty Crankshaft Position (CKP) Sensor
  • Crankshaft Position (CKP) Sensor harness is open or shorted
  • Crankshaft Position (CKP) Sensor circuit poor electrical connection
  • Low cylinder compression

First diagnose P1398 code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the P1398 code

    Labor: 1.0

    The cost of diagnosing the P1398 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1398 Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1398 Meaning

With the engine running, the Powertrain Control Module (PCM) detects that the Actual Crankshaft Position (CKP) sensor signal level disagreed with the Expected CKP sensor signal level.
OBDII Code P1398 - Misfire Adaptive Numerator At Limit Condition - Engine-Codes.com

P1398 More Information

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