P0206 on Ford
Injector Circuit/Open - Cylinder 6
P0206 on Ford vehicles indicates injector circuit/open - cylinder 6. Au7o has documented this code across 2 Ford models — most commonly on F-250, Transit. This code means the engine computer detected an electrical problem in the fuel injector circuit for cylinder 6 — specifically an open circuit or one that's out of its expected resistance range. Each injector is an electrically controlled valve that sprays fuel into the cylinder, and the computer monitors that circuit to make sure the injector is responding to its commands. When it sees a break, short, or weak signal on cylinder 6's injector wiring, it sets this code, which usually shows up alongside a rough-running engine or a misfire on that cylinder. It points to a wiring/connector fault or a bad injector rather than a fuel-quality problem. Typical repair costs on Ford range from $300 to $2,500, depending on the specific model and root cause.
Common Causes of P0206
- •Corroded, loose, or damaged injector connector at cylinder 6
- •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
P0206 on Ford by Model
Ford F-250(1 issue)
- 7.3L IDI/Powerstroke Injector Failure1990-1998
The 7.3L diesel engines (IDI pre-1994, Powerstroke 1994+) experience injector failure causing rough running, hard starts, and excessive smoke. The IDI injectors are simpler mechanical units; Powerstroke uses HEUI hydraulic electronic injectors.
Ford Transit(1 issue)
- Fuel Injector Failure and Rough Running (EcoBlue Diesel)2017-2023
The 2017-2023 Ford Transit with the 2.0L EcoBlue diesel engine (available in some markets) and the 3.5L EcoBoost V6 experience fuel injector failures causing rough running, misfires, poor idle, reduced performance, and excessive smoke on cold start. Parkers UK documents an official Ford service action for Transit EcoBlue diesel injector failures traced to a quality issue with Continental-supplied injectors where an internal surface coating comes unstuck, blocking the injector. FordTransitUSAForum.com documents injector failure on 3.5L EcoBoost Transit models as well, where direct injection fuel deposits cause injector spray pattern degradation. RepairPal estimates individual injector replacement between $266 and $627 depending on Transit model, but multiple injectors often need replacement simultaneously, and contaminated fuel systems can cost significantly more.
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View P0206 across all makes →Frequently Asked Questions
What does P0206 mean on Ford?▼
P0206 stands for "Injector Circuit/Open - Cylinder 6." This code means the engine computer detected an electrical problem in the fuel injector circuit for cylinder 6 — specifically an open circuit or one that's out of its expected resistance range. Each injector is an electrically controlled valve that sprays fuel into the cylinder, and the computer monitors that circuit to make sure the injector is responding to its commands. When it sees a break, short, or weak signal on cylinder 6's injector wiring, it sets this code, which usually shows up alongside a rough-running engine or a misfire on that cylinder. It points to a wiring/connector fault or a bad injector rather than a fuel-quality problem. On Ford specifically, this code is documented across 2 models.
What causes P0206 on Ford vehicles?▼
Common causes on Ford: Corroded, loose, or damaged injector connector at cylinder 6, 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 P0206 on a Ford?▼
Repair costs on Ford range from $300 to $2,500, depending on the specific model and root cause.
Which Ford models have P0206 documented?▼
Au7o has documented P0206 on 2 Ford models: F-250, Transit.