P039E
Cylinder 1 Combustion Performance
P039E is an OBD-II diagnostic trouble code meaning: Cylinder 1 Combustion Performance. Common causes: faulty spark plug, problems with the ignition coil. Estimated repair cost: $56–167.
Symptoms
- Misfires
- Power Loss
- Uneven engine operation
- Increased fuel consumption
Causes
- Faulty spark plug
- Problems with the ignition coil
- Dirty or faulty injector
- Low cylinder compression
- Problems with the fuel system
How to Fix
- Check the condition of the spark plug in cylinder 1
- Test the ignition coil
- Check the operation of the injector
- Measure the compression in the cylinder
- Check the fuel system and ignition system
Related codes
Error P039E by Vehicle Brand
FAQ
What does the P039E code mean?
P039E is an OBD-II diagnostic trouble code that indicates: Cylinder 1 Combustion Performance
What causes a P039E error code?
The most common causes of P039E include: Faulty spark plug; Problems with the ignition coil; Dirty or faulty injector; Low cylinder compression.
How do I fix a P039E diagnostic trouble code?
To fix P039E: Check the condition of the spark plug in cylinder 1. Test the ignition coil. Check the operation of the injector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P039E?
Limited driving only, diagnose soon
How much does it cost to fix P039E?
The estimated repair cost for P039E is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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