P0351 2007 Ford Fusion Code - Ignition Coil 'A' Primary/Secondary Circuit

The code P0351 indicates a problem with the ignition coil 'A' primary/secondary circuit in the ignition system of the vehicle.

Common symptoms include engine misfires, rough idling, loss of power, and illuminated Check Engine Light on the dashboard.

Potential causes include a faulty ignition coil 'A', wiring issues in the ignition coil circuit, a faulty PCM (powertrain control module), or a poor electrical connection.

Diagnosis involves checking the ignition coil 'A' for proper functioning, inspecting the wiring for any damage or loose connections, and using a scan tool to check for other related trouble codes.

It is not recommended to continue driving the vehicle with code P0351 as it can lead to further damage to the ignition system and potentially cause more severe issues.

Repair options include replacing the faulty ignition coil 'A', repairing any damaged wiring or connections, and clearing the trouble code with a scan tool after the repair is completed.

Regularly inspecting and servicing the ignition system components, such as the ignition coils and spark plugs, can help prevent issues that may trigger code P0351.

The cost of repair can vary depending on the specific cause of the issue, but it generally involves the cost of parts (such as the ignition coil) and labor for diagnosis and replacement.

If you have the necessary tools, knowledge, and experience working on automotive electrical systems, you may be able to diagnose and replace the faulty components causing code P0351 yourself.

Resetting the Check Engine Light may temporarily turn off the light, but it will not fix the underlying issue causing code P0351. It's important to diagnose and repair the problem to prevent further complications.