P0212 — Injector Circuit Malfunction - Cylinder 11
Drivable short-term, but fix now to avoid damage.
What P0212 means
This code means your car's computer found an electrical fault in the wiring or control circuit for the fuel injector on cylinder 11, used on large V12 engines. It typically points to a failing injector, damaged wiring or connectors, or a problem in the circuit driving it. Repairs usually involve testing and replacing the injector or repairing the wiring, and it's often fixable without major engine teardown.
Common symptoms
- Check engine light is on
- Rough idle or noticeable engine shaking
- Engine misfires or hesitates under load
- Loss of power or poor acceleration
- Increased fuel consumption or rough running
Common causes
- Faulty fuel injector on cylinder 11
- Damaged or corroded injector wiring or connector
- Open or short circuit in the injector control wiring
- Failed injector driver in the engine control module
- Poor electrical ground or loose connection
Typical repair cost
$150 – $600
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0212 code?
For short trips usually yes, but don't lean on it. A misfiring cylinder can damage your catalytic converter and may strand you, so get it checked soon. If the engine shakes hard or loses power, stop and have it towed.
How much does it cost to fix a P0212 code?
Generally $150 to $600. Wiring repairs are cheaper, but cylinder 11 lives on big V12 engines where injector parts and labor can be pricier, pushing toward the high end.
Is a P0212 code serious?
It can be. The injector circuit fault usually causes misfires that may damage emissions parts and waste fuel if ignored. It's best to repair it without much delay.
Why are repairs sometimes more expensive on these engines?
Cylinder 11 appears on large V12 engines in luxury and high-performance cars, where parts cost more and reaching the injector can take extra labor. That's why the estimate can run higher than for a typical four-cylinder.