If your Peugeot, Citroën, or Ford with the 1.6 diesel engine is throwing codes like P0267, P0269, P0270, or P0271, you’re likely facing an injector circuit short (high voltage). Symptoms include rough misfires, limp mode, and poor acceleration. Let’s go through the causes, reliable fixes, costs, and preventive steps.
What Do These Codes Mean?
Each code corresponds to a specific cylinder injector circuit drawing excessive voltage—P0267 for cylinder 3, P0269 for cylinder 4, and so on. These faults commonly hit the 1.6 HDi/TDCi engines found in Peugeot 3008, Citroën C4, and Ford Focus.
Symptoms
- Rough misfire and poor idle
- Car in limp mode with sluggish acceleration
- Diesel smell or black smoke
- Check Engine Light illuminated
User Case Study
A Peugeot 3008 1.6 diesel owner faced constant limp mode and misfires with a P0269 error. After inspecting the wiring harness and confirming no coolant issues, they replaced injector 4 with a refurbished OEM unit. The replacement was coded using the iCarsoft CR MAX BT. Following a fuel system bleed, the engine ran smoothly and stayed trouble-free for over 12,000 miles.
DIY Repair Steps
- Scan and pinpoint the faulty cylinder using the CR MAX BT tool.
- Check injector wiring/connectors for faults.
- Swap injector with a known good one to isolate the issue.
- Install a refurbished or OEM injector if needed.
- Code the new injector using iCarsoft CR MAX BT.
- Bleed the fuel system and test drive to ensure resolution.
Repair Costs
- Refurbished injector: $150–$250
- New OEM injector: $300–$450
- Labor (kit + install): $200–$400 if you use a mechanic
- CR MAX BT Scanner Investment: $250+ for self-diagnosis
Related Code Deep Dive
For a more detailed exploration of P0271 – Cylinder 4 Injector Circuit High—including wiring analysis, ECU symptoms, and additional troubleshooting steps—check out our dedicated guide here: P0271 Code: Cylinder 4 Injector Circuit High – Causes, Symptoms, and Fixes.
FAQ: Injector Short Circuit High (P0267–P0271)
1. Can I still drive with these codes? Only short trips—prolonged driving can damage the turbo or DPF.
2. Will cleaning the injector help? Sometimes cleaning wiring helps, but a faulty injector requires replacement.
3. Can I use aftermarket injectors? Refubished OEM injectors are safer. Cheap aftermarket ones may fail soon.
4. Do I need to reset the ECU after replacing? Yes—use a scan tool like CR MAX BT to code the injector correctly.
5. How to avoid this issue? Use quality fuel, stick to scheduled fuel filter changes, and check connectors periodically.
6. Will the car ever return to normal without replacing the injector? No—intermittent faults might mask the issue temporarily, but replacement is needed for long-term reliability.
7. Does fuel quality affect injector longevity? Yes—contaminated or dirty diesel can clog injectors and contribute to electronic failures.
8. What if symptoms return after replacement? Then inspect the wiring harness and ECU injector driver circuit for deeper faults.
