OBD-II Generic Error Code P0355: How to Fix It

Q: Can I drive with error code P0355?

It's not recommended. Driving with this code can cause engine misfires, reduced power, poor fuel economy, and potential damage to the catalytic converter due to unburned fuel.

Q: What does 'Ignition Coil E Primary Circuit' mean?

It means the engine control module has detected an issue in the primary electrical circuit of the fifth ignition coil (coil E). This could be a faulty coil, bad wiring, connector problems, or a PCM issue.

Q: How much does it cost to fix P0355?

DIY cost for a replacement coil is typically $30-$80. Mechanic labor adds $100-$200. If wiring repairs are needed, costs may be higher.

Q: Is P0355 the same as P0354?

No. P0355 refers to coil E, while P0354 refers to coil D. The diagnostic steps are similar but for different cylinders.

Q: Can a bad spark plug cause P0355?

Indirectly, yes. A faulty spark plug can cause high voltage demands that stress the coil, but the code specifically points to the primary circuit. It's wise to check spark plugs if replacing the coil.

Abstract

Error code P0355 indicates a problem with the primary circuit of ignition coil E. This means the engine control module has detected an electrical fault in the coil's primary winding or its control circuit. Driving with this code can cause misfires, poor performance, and catalytic converter damage, so it should be addressed promptly.