OBD-II Generic Error Code P2320: How to Fix It – Ignition Coil G Secondary Circuit

Q: What does error P2320 mean?

P2320 indicates a fault in the secondary circuit of ignition coil G, which is the coil for one of the engine's cylinders (often cylinder 6 or 7). This can cause misfires and poor performance.

Q: Can I drive with a P2320 code?

Driving short distances is possible, but prolonged driving may damage the catalytic converter due to unburned fuel. If the check engine light is flashing, stop driving immediately.

Q: How much does it cost to fix P2320?

Replacing the coil yourself costs $30-$100 for the part. Professional repair including diagnostics and labor typically ranges from $150 to $300.

Q: What causes P2320?

Common causes include a faulty ignition coil, damaged wiring or connector, poor ground, or a bad spark plug. Less common is a failed engine control module (ECM).

Q: How do I test an ignition coil?

Use a multimeter to measure resistance: primary (0.4-2.0 ohms) and secondary (6,000-15,000 ohms). Also check for 12V power and good ground at the coil connector.

Abstract

Error P2320 indicates a problem with the secondary circuit of ignition coil G, the coil for cylinder 6 or 7 (varies by engine). This often causes misfires, rough idle, or reduced power. The fix typically involves checking the coil, wiring, and connections.