AutoCodes - Honda - P1399 HONDA

P1399 HONDA Code - Random Cylinder Misfire Detected

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|P1399 HONDA code possible causes

  • Valve clearance out of range
  • Blocked EGR (exhaust gas recirculation) Passages

|How do I fix the P1399 HONDA 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 connector's pins.

|P1399 HONDA code tech notes

Adjusting the valves will usually fix this problem.

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|Cost of diagnosing the P1399 HONDA code

Labor: 1.0

The cost of diagnosing the P1399 HONDA code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P1399 HONDA code detected?

The control module monitors the crankshaft speed and has detected a misfire condition

|What are P1399 HONDA code possible symptoms?

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

|P1399 HONDA code 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 set.
OBDII Code P1399 Honda - Random Cylinder Misfire Detected -

|Need more information with the P1399 HONDA code?

Need more information on how to fix the P1399 HONDA code? Get Access to Factory Service Manuals

|Need help with a P1399 HONDA code?

Get the P1399 Honda code diagnosed by a professional: Find a repair shop in your area

|P1399 HONDA code comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P1399 Honda code? Have you replaced any parts?
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