P0207 on Chevrolet
Injector Circuit/Open - Cylinder 7
P0207 on Chevrolet vehicles indicates injector circuit/open - cylinder 7. Au7o has documented this code across 1 Chevrolet model — most commonly on Silverado 2500HD. This code indicates the engine computer found an electrical fault — an open or out-of-range circuit — in the fuel injector wiring for cylinder 7. The injector is a solenoid-operated valve, and the computer watches its circuit to verify it's firing on command. A break, short, or high resistance on cylinder 7's injector circuit triggers this code, often with a noticeable misfire or rough idle on that cylinder. The problem lies in the injector itself or its electrical connection, not in fuel pressure or quality. Typical repair costs on Chevrolet range from $100 to $800, depending on the specific model and root cause.
Common Causes of P0207
- •Corroded, loose, or damaged injector connector at cylinder 7
- •Open, shorted, or chafed wiring in the injector circuit
- •Failed fuel injector (open internal winding)
- •Poor ground or power feed to the injector driver
- •Failed injector driver circuit inside the ECM/PCM
- •Water intrusion or pin corrosion in the engine harness
P0207 on Chevrolet by Model
Chevrolet Silverado 2500HD(1 issue)
- Injector Wiring Harness Chafing (Duramax)2001-2016
The fuel injector wiring harness on the Duramax diesel routes across the top of the engine under the valve covers. The harness rubs against the valve cover and rocker arms, causing the insulation to wear through and the wires to short or open. When an injector wire is damaged, the affected cylinder misfires, the engine runs rough, and white smoke pours from the exhaust. The chafing is accelerated by engine vibration and can affect multiple cylinders over time. GM released updated harness routing clips but the fundamental design has the harness in a high-wear location.
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What does P0207 mean on Chevrolet?▼
P0207 stands for "Injector Circuit/Open - Cylinder 7." This code indicates the engine computer found an electrical fault — an open or out-of-range circuit — in the fuel injector wiring for cylinder 7. The injector is a solenoid-operated valve, and the computer watches its circuit to verify it's firing on command. A break, short, or high resistance on cylinder 7's injector circuit triggers this code, often with a noticeable misfire or rough idle on that cylinder. The problem lies in the injector itself or its electrical connection, not in fuel pressure or quality. On Chevrolet specifically, this code is documented across 1 model.
What causes P0207 on Chevrolet vehicles?▼
Common causes on Chevrolet: Corroded, loose, or damaged injector connector at cylinder 7, Open, shorted, or chafed wiring in the injector circuit, Failed fuel injector (open internal winding), Poor ground or power feed to the injector driver, Failed injector driver circuit inside the ECM/PCM. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0207 on a Chevrolet?▼
Repair costs on Chevrolet range from $100 to $800, depending on the specific model and root cause.
Which Chevrolet models have P0207 documented?▼
Au7o has documented P0207 on 1 Chevrolet model: Silverado 2500HD.