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P1399 Honda Code - Random Cylinder Misfire Detected

- Code Popularity: 240,869 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1399 Honda?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Valve clearance out of range
  • Blocked EGR (exhaust gas recirculation) Passages
⚠ Does your Honda have Safety Recalls? → Check here

How to Fix the DTC P1399 Honda?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

Adjusting the valves will usually fix this problem.









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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1399 Honda code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Lack/loss of power
  • Hard start
  • Engine hesitation

Code P1399 Honda Description

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring, and the Diagnostic Trouble Code (DTC) will be set.

OBDII Code P1399 Honda - Random Cylinder Misfire Detected - AutoCodes.com
P1399 Honda Code - Random Cylinder Misfire Detected

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Code P1399 Honda comments

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