OBD-II Generic Error Code P2302: How to Fix It (Ignition Coil A Secondary Circuit)

Q: What does error code P2302 mean?

P2302 indicates a problem in the secondary circuit of ignition coil A. This can cause misfires and poor engine performance.

Q: Can I drive with a P2302 code?

Driving short distances is possible, but it may cause poor fuel economy, reduced power, and potential damage to the catalytic converter. It's best to fix it promptly.

Q: How much does it cost to fix P2302?

The cost varies. A replacement ignition coil can cost $30-$100 for parts plus labor. DIY repair can save on labor costs.

Q: What tools do I need to diagnose P2302?

You'll need an OBD2 scanner to read the code, a multimeter to test the coil, and basic hand tools to access the coil.

Q: Will a bad spark plug cause P2302?

Yes, a worn or faulty spark plug can cause increased resistance in the secondary circuit, triggering the code.

Abstract

Error code P2302 means the engine control module (ECM) has detected a problem in the secondary circuit of ignition coil A. This can cause misfires, rough idling, and poor fuel economy. The issue is often due to a faulty coil, damaged wiring, or a bad spark plug.