Error code

OBD2 P0310

OBD2P0310
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Cylinder 10 Misfire Detected.

Severity

moderateCan be driven but performance will suffer and it may cause further engine damage if not addressed.

Summary

P0310 indicates that cylinder number 10 is misfiring, which means it's not igniting properly as part of the engine's combustion process.

Symptoms

  • Vibrations at idle
  • Decreased engine performance and fuel economy

Common Causes

  • Faulty spark plug in cylinder 10
  • Defective ignition coil for cylinder 10
  • Wiring issues related to cylinder 10
  • Malfunctioning fuel injector for cylinder 10

Diagnosis

  1. Check the spark plug, ignition coil, wiring, and fuel injector for cylinder 10.
  2. Swap components between cylinder 10 and a functioning cylinder to isolate the issue.
  3. Inspect for compression problems such as exhaust valve or head gasket leaks if swapping doesn't resolve the misfire.

Fixes

  • Replace faulty spark plug, ignition coil, wiring, or fuel injector in cylinder 10

FAQ

What should I do if my car has a P0310 code?

Start by checking the spark plug, ignition coil, wiring, and fuel injector for cylinder 10. If issues persist after swapping components with another cylinder, further inspection of compression problems may be necessary.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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