P0210 critical

Injector Circuit / Open - Cylinder 10

The P0210 code means the vehicle's onboard diagnostic system has detected: Injector Circuit / Open - Cylinder 10. This is a critical severity code.

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Keep driving?: No -- stop driving
DIY difficulty: hard
Estimated cost: $150 - $500 (fuel injector $80-$250; labor $100-$300)

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Common Symptoms

Check Engine Light on or flashing
Cylinder 10 misfire with rough idle
Significant power loss
Engine vibration and shaking
Fuel smell from unburned fuel

Probable Causes (Ranked by Likelihood)

Failed fuel injector on cylinder 10 Very High
Open or broken wire in the injector circuit High
Corroded or disconnected injector connector Moderate
PCM injector driver failure Low
High resistance in injector coil Low

Step-by-Step Diagnostic Procedure

Confirm cylinder 10 misfire with a scan tool.
Measure injector resistance on cylinder 10 (11-17 ohms typical). Open or out-of-range reading indicates a failed injector.
Check for pulse at the injector connector using a noid light during cranking.
Inspect the wiring and connector for damage or corrosion.
Swap the injector with an adjacent cylinder to confirm the fault.

Frequently Asked Questions

Can I drive with code P0210?

No. Running with a dead cylinder risks catalytic converter damage from unburned fuel. Have the vehicle towed to a shop for diagnosis.

Is cylinder 10 the last cylinder on a V10?

Yes. Cylinder 10 is the last cylinder on V10 engines. Its location varies by manufacturer but is typically at the rear of one bank.

Should I replace all injectors on a V10?

If the engine has high mileage (100,000+ miles), replacing all 10 injectors ensures even fuel delivery and prevents repeat failures. For lower mileage engines, replacing only the failed injector is acceptable.