Injector Circuit / Open - Cylinder 10
What does P0210 mean?
The P0210 code means the vehicle's onboard diagnostic system has detected: Injector Circuit / Open - Cylinder 10. This is a critical severity code.
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
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Confirm cylinder 10 misfire with a scan tool.
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Measure injector resistance on cylinder 10 (11-17 ohms typical). Open or out-of-range reading indicates a failed injector.
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Check for pulse at the injector connector using a noid light during cranking.
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Inspect the wiring and connector for damage or corrosion.
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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.