P0206 Injector Circuit Malfunction - Cylinder 6

P0206 points to an injector circuit malfunction on cylinder 6. The fault is electrical or control-circuit focused, even when the symptom feels like a misfire.

Code details

Generic OBD-II · P0

System: Injector
Code type: Generic (SAE / ISO controlled)
Standard: SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not treat P0206 as a fuel-quality or spark-plug issue first; the named path is the cylinder 6 injector circuit.

Symptoms of P0206

Check-engine light, often with a misfire feel from one cylinder.
Rough idle, hesitation, or a slight loss of power.
Higher fuel use, or in some cases a fuel smell.

Common causes of P0206

A stuck, leaking, clogged, or electrically failed injector.
Injector wiring, connector, or driver-circuit faults.
Low fuel pressure or contamination affecting injector behaviour.

Useful checks before replacing parts

Inspect cylinder 6 injector connector condition, terminal tension, wiring continuity, power feed, and control signal.
Compare injector current, resistance, or balance results against known-good cylinders when the vehicle supports it.
Use misfire data and fuel trims to separate injector-circuit failure from fuel delivery or compression problems.

Related OBD-II codes

These nearby injector entries can help compare wording and pin down the fault area.