P0307

Severity medium

AUTO

The engine control module has noticed that cylinder 7 is not completing its combustion cycle properly. This usually shows up as a rough idle

OBD-II scanner plugged into a car diagnostic port showing a trouble code
OBD-II codes: read the code, test the component, clear it and re-check.

What it means

The engine control module has noticed that cylinder 7 is not completing its combustion cycle properly.

How to fix P0307

  1. Visual inspection of obvious items
  2. Check cylinder 7 spark plug
  3. Test ignition coil or coil‑on‑plug (COP) for cylinder 7

Related errors

P0306P0305P0304P0420P0430P0440P0442P0446

Source: open OBD-II DTC database

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