P0201 on Ford: How to Diagnose & Fix
Injector Circuit/Open - Cylinder 1
3 Ford models · 3 documented issues · 1 critical · $300-$2,500 repair
P0201 on Ford by model: symptoms, diagnosis and fix
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.
Common Symptoms
- Rough running and engine misfires
- Poor idle quality
- Excessive blue or black smoke on cold start
- Reduced engine performance and power
- Check engine light with injector or misfire codes
- Engine stalls immediately after starting
- High fuel consumption
- Engine hesitation under acceleration
How to Fix
For Transit 3.5L EcoBoost: replace failed injectors ($100-200 per injector, 3-4 hours labor). Consider replacing all 6 injectors if the vehicle has over 100k miles - if one has failed, others are likely close behind. For EcoBlue diesel: Ford issued a service action for Continental injector failures - check with dealer for coverage. Use only Top Tier gasoline and change fuel filters per schedule. Professional fuel system cleaning every 50,000 miles can extend injector life.
Sources for this issue (1)
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.
Common Symptoms
- Hard starting
- Black or white smoke
- Rough idle
- Knocking noise
- Loss of power
How to Fix
Sources for this issue (1)
The 3.5L EcoBoost's high-pressure direct (GDI) injectors run at diesel-like pressures and are a common failure item, especially at higher mileage and after heat-soak. A stuck-open or electrically failing injector floods a cylinder and can wash down neighboring cylinders on the same bank, producing a cold-start misfire that often smooths out once warm. It commonly sets injector-circuit codes (P0201-P0206) alongside misfire codes (P0300-P0308) and occasionally a total-misfire/knock code. It is frequently misdiagnosed as coils or plugs before the injector is found.
Common Symptoms
- Cold-start misfire / stumble that smooths when warm
- Rough idle and hesitation on acceleration
- Check-engine light, often flashing on start
- Fuel smell from exhaust, poor fuel economy
- Single-cylinder or same-bank multi-cylinder misfire
How to Fix
Read freeze-frame and identify the specific cylinder; compare fuel-injector balance/contribution data. Swap or replace the failed GDI injector (intake manifold removal required for access) and inspect for fuel-washed plugs. Replace plugs/coils on the affected cylinder if fouled. Verify high-pressure fuel pump output and low-side pressure to rule out supply issues before replacing multiple injectors.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- High-pressure direct-injection (GDI) fuel injector — 2011-2016 3.5L EcoBoost (Gen 1)OEMBL3Z-9F593-BCross-refMotorcraft CM-5202 (superseded by BL3Z-9F593-B), Ford BL3Z-9F593-A (earlier revision, superseded), Ford engineering number BL3E-9F593-HB / BL3E-HB$95–$185
Sold individually; the engine takes 6 (Require Quantity: 6). Gen 1 (2011-2016) 3.5L EcoBoost is direct-injection ONLY, so this is the single injector type on the engine.
- High-pressure direct-injection (GDI) fuel injector — 2017-2020 3.5L EcoBoost (Gen 2)OEMHL3Z-9F593-BCross-refBosch 0261500307, Motorcraft/Ford service reference CM5254, Ford 82511115$66–$140
Sold individually; 6 per engine.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (1)
P0201 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0201 mean on a Ford?
P0201 stands for "Injector Circuit/Open - Cylinder 1." P0201 means the engine computer detected an electrical problem in the wiring or control circuit for the fuel injector on cylinder 1. The PCM pulses each injector open and back ground, and when it sees an open circuit, a short, or abnormal resistance on cylinder 1's injector circuit, it sets this code. In practice it means cylinder 1 may not be getting fuel injected properly, which can cause a misfire, rough running, or a no-start on that cylinder. It points to the injector itself or its wiring, not to a fuel-pressure problem affecting the whole engine. On Ford it is documented across 3 models: Transit, F-250, F-150.
What are the most common causes of P0201?
The most common causes of P0201 are: Damaged or corroded injector connector or terminals at cylinder 1, Broken, chafed, or shorted injector wiring harness, Failed (open or shorted) fuel injector on cylinder 1, Loose or poor ground/power feed to the injector circuit, Blown injector fuse or relay feeding the bank, Failed injector driver inside the PCM/ECM. The specific cause varies by vehicle.
How much does it cost to fix P0201 on a Ford?
Published repair estimates on Ford range from $300 to $2,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0201 on a different make?
View P0201 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.