P0211 critical

Injector Circuit / Open - Cylinder 11

The P0211 code means the vehicle's onboard diagnostic system has detected: Injector Circuit / Open - Cylinder 11. This is a critical severity code.

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Keep driving?: No -- stop driving
DIY difficulty: hard
Estimated cost: $200 - $600 (fuel injector $100-$300; labor $150-$400)

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Common Symptoms

Check Engine Light on or flashing
Cylinder 11 misfire with rough engine operation
Noticeable power loss
Engine vibration
Unburned fuel entering exhaust system

Probable Causes (Ranked by Likelihood)

Failed fuel injector on cylinder 11 Very High
Open wiring in the injector circuit High
Corroded or loose connector Moderate
PCM injector driver failure Low
High resistance in injector coil winding Low

Step-by-Step Diagnostic Procedure

Confirm cylinder 11 misfire with a scan tool.
Measure injector resistance on cylinder 11 (11-17 ohms typical).
Check for pulse at the injector connector using a noid light.
Inspect wiring and connector for damage, breaks, or corrosion.
Swap the injector with another cylinder to confirm the fault.

Frequently Asked Questions

Can I drive with code P0211?

No. A dead cylinder 11 injector causes unburned fuel to enter the exhaust, risking catalytic converter damage. Have the vehicle serviced immediately.

What vehicles have a cylinder 11?

Cylinder 11 is found only on V12 engines, which are used in high-end luxury and performance vehicles such as Mercedes-Benz S600, BMW 760, Ferrari, and Aston Martin models.

Are V12 injector repairs expensive?

Yes. V12 injectors are typically more expensive ($100-$300 each), and labor costs are higher due to the complexity of the engine layout. Total repair costs for a single injector can range from $200 to $600.