Faulty fuel injector on cylinder 11 (open internal coil or mechanical failure); Damaged or corroded electrical connector at the injector; Broken, chafed, or open wire in the injector harness; PCM driver circuit failure for that injector channel; High resistance in the injector ground circuit; Loose or damaged terminal pins at the PCM connector

DTC codes / P02xx · Fuel and air metering (injector circuits) / P0211

P0211Injector Circuit/Open - Cylinder 11

Q: What does code P0211 mean?

Injector Circuit/Open - Cylinder 11. P0211 indicates that the powertrain control module (PCM) has detected an open circuit or excessive resistance in the fuel injector circuit for cylinder 11, meaning the electrical path to that injector is not completing as expected. The PCM monitors injector current and flags this code when the circuit fails to meet expected electrical parameters during engine operation.

P0211 indicates that the powertrain control module (PCM) has detected an open circuit or excessive resistance in the fuel injector circuit for cylinder 11, meaning the electrical path to that injector is not completing as expected. The PCM monitors injector current and flags this code when the circuit fails to meet expected electrical parameters during engine operation.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Symptoms you may notice

Rough idle or misfire, especially noticeable at low speeds
Noticeable loss of engine power and reduced acceleration
Shaking or vibration from the engine bay, particularly under load
Often no symptoms besides the warning light, especially if the misfire is subtle
Poor fuel economy due to incomplete combustion in cylinder 11
Possible flashing check engine light if the misfire is severe enough to damage the catalytic converter

Common causes, most likely first

Faulty fuel injector on cylinder 11 (open internal coil or mechanical failure)
Damaged or corroded electrical connector at the injector
Broken, chafed, or open wire in the injector harness
PCM driver circuit failure for that injector channel
High resistance in the injector ground circuit
Loose or damaged terminal pins at the PCM connector

How to diagnose and fix it

Perform a visual inspection of the injector connector and wiring for damage or corrosion
Measure injector resistance with a multimeter and compare to specification
Check for battery voltage at the injector connector with the key on and engine off
Perform a voltage drop test on the ground circuit to rule out high resistance
Use a noid light or oscilloscope to verify the PCM is pulsing the injector circuit
Repair or replace the faulty wiring, connector, or injector as needed
Clear the code and verify the repair with a test drive and live data review

Don't assume the injector is dead

A chafed wire in the harness often causes this code, especially where the loom bends near the intake manifold or cylinder head.
Corroded connector pins can mimic a failed injector, so always inspect and clean terminals before condemning the injector.
The PCM driver for that injector can fail, which is rare but possible; swapping the injector with a known-good cylinder can confirm the fault location.
An open circuit code does not always mean the injector is electrically open; high resistance from a poor connection can set the same code.
On engines with cylinder deactivation, the injector for a deactivated cylinder may not pulse, but P0211 specifically indicates an electrical fault, not a deactivation command.

Can I keep driving with P0211?

Driving with P0211 is possible but not recommended for long distances because the misfire can overheat and damage the catalytic converter. Avoid heavy acceleration and have the fault diagnosed promptly.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.