What does code P0351 mean?

P0351 — Ignition coil #1 circuit malfunction. Weak or no spark on cylinder 1. Belongs to the powertrain.misfire system. Severity: critical.

What are the common causes of P0351?

Open winding in cylinder 1 coil; Damaged coil connector; Damaged control wire from ECM to coil; Failed ECM driver transistor; High-voltage output shorted to ground

Can I drive with code P0351?

Not recommended. Continued driving can damage the engine, transmission, or catalyst. Use a tow truck or take the shortest possible route to a workshop.

How do I diagnose P0351?

Read the code and freeze-frame with a scanner, check related-system errors, inspect the components listed (wiring, connectors, sensors). See the "How to diagnose" section above for the full step-by-step.

How do I clear code P0351?

The code can be cleared via an OBD-II scanner (e.g. ELM327 + the Car Diagnostics app): plug the adapter into the OBD port, go to Errors → Clear. If the underlying cause isn't fixed, the code will return within a few drive cycles.

OBD-II Code P0351 — Car Diagnostics Platform

What it means

Common causes

Open winding in cylinder 1 coil
Damaged coil connector
Damaged control wire from ECM to coil
Failed ECM driver transistor
High-voltage output shorted to ground
Coil insulation breakdown — arcing to housing

How to diagnose

01
Read all stored and pending codes with an OBD-II adapter — get the full picture, not just the one code.
02
Capture freeze-frame data (RPM, coolant temperature, engine load) at the exact moment the code triggered.
03
Inspect the named subsystem with our app's AI explanation — get vehicle-specific causes for your make, model and year.

Decode P0351 on your actual car

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