P0207: Injector Circuit/Open - Cylinder 7
3 vehicles · 3 makes · $100-$5,000 repair
Most Reported On
P0207 is an OBD-II diagnostic trouble code meaning “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. This code is most commonly reported on 2001-2016 Chevrolet Silverado 2500HD, 2015-2024 GMC Sierra 3500HD, and 1990-1998 Ford F-250, with repair costs ranging from $100 to $5,000.
Common Causes
Typical Repair Cost
Based on 3 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0207, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
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Vehicles Affected (3)
FAQ
What does P0207 mean?
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.
What are the most common causes of P0207?
The most common causes of P0207 are: 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. The specific cause varies by vehicle.
How much does it cost to fix P0207?
Repair costs for P0207 range from $100 to $5,000, depending on the vehicle and root cause.
Which vehicles are affected by P0207?
Au7o has documented P0207 across 3 vehicle models from 3 manufacturers: Chevrolet, Ford, GMC.
Sources (6)
- manufacturerOregon Fuel Injection: Chevrolet-GMC Diesel Diagnostics
- ForumSilveradoSierra: 6.6L Duramax Diesel blowing white smoke
- mediaChevy Trucks: The 3 Most Common Duramax L5P Engine Problems
- mediaDiesel Power Products: Common Duramax Diesel Problems & Fixes LB7 to L5P
- ForumDuramax Forum: 2015 LML blowing white smoke but why
- videoHow to Diagnose and Replace 7.3L Powerstroke Injectors - EricTheCarGuy
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.