P1339 Code - Cylinder 2 Glow Plug Offset Exceeded Learning Limit
Quick Answer
The P1339 diagnostic trouble code (DTC) indicates that the engine control module (ECM) has detected an issue with the glow plug in cylinder 2 of the vehicle. Common causes include Faulty glow plug in cylinder 2, Wiring issues or electrical connections related to the glow plug, ECM software or calibration issues. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1339 indicates Cylinder 2 Glow Plug Offset Exceeded Learning Limit.
- Common causes
- Common causes include Faulty glow plug in cylinder 2, Wiring issues or electrical connections related to the glow plug, ECM software or calibration issues.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1339 Description
The P1339 diagnostic trouble code (DTC) indicates that the engine control module (ECM) has detected an issue with the glow plug in cylinder 2 of the vehicle. Glow plugs are used in diesel engines to heat the combustion chamber for easier starting in cold conditions. The code specifically points to an offset that has exceeded the learning limit, which means that the ECM has detected a discrepancy between the expected and actual performance of the glow plug in cylinder 2.
Common Causes of P1339
- Faulty glow plug in cylinder 2
- Wiring issues or electrical connections related to the glow plug
- ECM software or calibration issues
- Carbon buildup on the glow plug
- Fuel quality or injector issues affecting combustion
Symptoms of P1339
- Hard starting or extended cranking time
- Rough idling or engine misfires
- Decreased fuel efficiency
- Reduced engine power
- Illumination of the check engine light
How to Fix P1339
- Perform a visual inspection of the glow plug in cylinder 2 and check for any signs of damage or wear.
- Test the glow plug using a multimeter to determine if it is functioning properly.
- Inspect the wiring and connections related to the glow plug for any damage or corrosion.
- Update the ECM software and recalibrate the glow plug offset learning parameters.
- Clean or replace the glow plug as needed to ensure proper heating of the combustion chamber.
Cost to Fix P1339
The typical repair costs for addressing a P1339 code can range from $100 to $300, depending on the extent of the issue and whether any parts need to be replaced. This cost estimate includes both parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to consult with a trusted mechanic or dealership to get a more accurate estimate based on your specific situation.
Tech Notes for P1339
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Code P1339 Information for Specific Makes
- P1339 Audi — Crankshaft Position/Engine Speed Sensor Cross Connected
- P1339 Buick — Cylinder 2 Glow Plug Offset Exceeded Learning Limit
- P1339 Cadillac — Cylinder 2 Glow Plug Offset Exceeded Learning Limit
- P1339 Chevrolet — Cylinder 2 Glow Plug Offset Exceeded Learning Limit
- P1339 GMC — Cylinder 2 Glow Plug Offset Exceeded Learning Limit
- P1339 Volkswagen — Crankshaft Position/Engine Speed Sensor Cross Connected
Frequently Asked Questions about P1339 Code
1. What are the common symptoms of OBDII code P1339 (Cylinder 2 Glow Plug Offset Exceeded Learning Limit)?
The common symptoms of P1339 may include rough idling, loss of power, increased fuel consumption, and the illumination of the check engine light.
2. What are the possible causes of OBDII code P1339?
Possible causes of P1339 include faulty glow plug, wiring issues, a malfunctioning glow plug control module, or a problem with the engine control module (ECM).
3. How can I diagnose the issue related to OBDII code P1339?
Diagnosing P1339 typically involves inspecting the glow plug, checking the wiring for any damage, testing the glow plug control module, and scanning the ECM for fault codes.
4. Can I still drive my vehicle with OBDII code P1339?
It is not recommended to drive the vehicle with code P1339 as it can lead to further damage to the engine components. It's best to address the issue promptly.
5. How can I repair OBDII code P1339 (Cylinder 2 Glow Plug Offset Exceeded Learning Limit)?
Repairing P1339 may involve replacing the faulty glow plug, repairing or replacing damaged wiring, or replacing the glow plug control module as needed.
6. Is it possible to reset OBDII code P1339 without fixing the underlying issue?
Resetting the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely reoccur. It's important to fix the problem to prevent further complications.
7. Can weather conditions affect OBDII code P1339?
Extreme cold weather can sometimes lead to glow plug issues, which may trigger P1339. Ensuring the glow plugs are in good condition and properly functioning can help prevent weather-related problems.
8. How long does it typically take to repair OBDII code P1339?
The repair time for P1339 can vary depending on the exact cause of the issue and the availability of parts. It's best to consult a professional mechanic for an accurate estimate.
9. Are there any preventive measures to avoid OBDII code P1339 in the future?
Regular maintenance, such as checking and replacing glow plugs as recommended by the manufacturer, can help prevent issues like P1339 from occurring. Following the recommended service schedule is key.
10. Can OBDII code P1339 cause damage to other engine components if left unresolved?
If left unresolved, P1339 can potentially cause damage to other engine components, such as the catalytic converter or the engine itself, due to improper combustion and inefficient fuel burning.
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