What does code P0263 mean?
Cylinder 1 is contributing less power than expected
OBD-II Code
P0263 — Cylinder 1 Contribution Balance Fault
Cylinder 1 is contributing less power than expected
Common symptoms
- Hesitation
- strong vibration
- loss of power
Possible causes
- Weak injector
- low compression
- faulty spark plug or ignition coil
Initial recommendation
Check compression, injector, ignition coil and spark plug.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0263 with your vehicle's actual symptoms for more complete diagnostic guidance.
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