P0351High urgency
Ignition Coil A Primary/Secondary Circuit
Powertrain · Ignition System
⛔ Cylinder 1 will not fire — catalytic converter damage risk if driven. Pull over if the check engine light is flashing.
What this means
The Cylinder 1 ignition coil primary or secondary circuit has a fault. The ECU cannot confirm the coil is functioning correctly.
Likely causes
- Failed ignition coil for Cylinder 1Most common
- Open or short in coil wiringCommon
- Fouled spark plug damaging the coilCommon
Estimated repair cost
Ignition coil replacement$60 – $200
Spark plug replacement$20 – $80
Wiring repair$80 – $250
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Frequently asked questions about P0351
What does P0351 mean?
The Cylinder 1 ignition coil primary or secondary circuit has a fault. The ECU cannot confirm the coil is functioning correctly.
Is P0351 serious?
Cylinder 1 will not fire — catalytic converter damage risk if driven. Pull over if the check engine light is flashing.
How much does it cost to fix P0351?
Repair costs for P0351 range from $60 – $200 depending on the root cause and your vehicle.
Can I drive with P0351?
No — this code indicates a serious issue. Stop driving and have the vehicle inspected immediately.