P0263
Cylinder 1 Contribution/Balance
P0263 is an OBD-II diagnostic trouble code meaning: Cylinder 1 Contribution/Balance. Common causes: malfunction of the fuel injector of cylinder 1, problems with the ignition system (plugs, coil). Estimated repair cost: $56–222.
Symptoms
- Power Loss
- Increased engine vibration
- Unstable idle
- Increased fuel consumption
- Check Engine Light Flashing
Causes
- Malfunction of the fuel injector of cylinder 1
- Problems with the ignition system (plugs, coil)
- Low compression in cylinder 1
- Vacuum leak
- Malfunction of sensors (oxygen, detonation)
- Dirty or damaged throttle valve
How to Fix
- Check the condition of the spark plug in cylinder 1
- Test the ignition coil and high-voltage wires
- Check the injector of cylinder 1 for contamination or malfunction
- Measure compression in cylinder 1
- Scan the ECU for other fault codes
- Check the intake manifold for leaks
- Clean throttle body
Related codes
Error P0263 by Vehicle Brand
FAQ
What does the P0263 code mean?
P0263 is an OBD-II diagnostic trouble code that indicates: Cylinder 1 Contribution/Balance
What causes a P0263 error code?
The most common causes of P0263 include: Malfunction of the fuel injector of cylinder 1; Problems with the ignition system (plugs, coil); Low compression in cylinder 1; Vacuum leak.
How do I fix a P0263 diagnostic trouble code?
To fix P0263: Check the condition of the spark plug in cylinder 1. Test the ignition coil and high-voltage wires. Check the injector of cylinder 1 for contamination or malfunction. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0263?
Limited driving only, diagnose soon
How much does it cost to fix P0263?
The estimated repair cost for P0263 is $56–222. Actual cost depends on your vehicle, location, and labor rates.
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