P0208 on Chevrolet
Injector Circuit/Open - Cylinder 8
P0208 on Chevrolet vehicles indicates injector circuit/open - cylinder 8. Au7o has documented this code across 1 Chevrolet model — most commonly on Silverado 2500HD. This code means the engine computer detected an open or out-of-range condition in the fuel injector circuit for cylinder 8. Fuel injectors are electrically operated valves, and the computer continuously checks that each one's circuit responds correctly when commanded to open. When cylinder 8's injector circuit reads as broken, shorted, or electrically abnormal, this code sets — frequently accompanied by a misfire or rough running on that cylinder. The fault is electrical (wiring, connector, or the injector itself), not a fuel-supply issue. Typical repair costs on Chevrolet range from $100 to $800, depending on the specific model and root cause.
Common Causes of P0208
- •Corroded, loose, or damaged injector connector at cylinder 8
- •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
P0208 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 P0208 mean on Chevrolet?▼
P0208 stands for "Injector Circuit/Open - Cylinder 8." This code means the engine computer detected an open or out-of-range condition in the fuel injector circuit for cylinder 8. Fuel injectors are electrically operated valves, and the computer continuously checks that each one's circuit responds correctly when commanded to open. When cylinder 8's injector circuit reads as broken, shorted, or electrically abnormal, this code sets — frequently accompanied by a misfire or rough running on that cylinder. The fault is electrical (wiring, connector, or the injector itself), not a fuel-supply issue. On Chevrolet specifically, this code is documented across 1 model.
What causes P0208 on Chevrolet vehicles?▼
Common causes on Chevrolet: Corroded, loose, or damaged injector connector at cylinder 8, 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 P0208 on a Chevrolet?▼
Repair costs on Chevrolet range from $100 to $800, depending on the specific model and root cause.
Which Chevrolet models have P0208 documented?▼
Au7o has documented P0208 on 1 Chevrolet model: Silverado 2500HD.