P1266 Code - Cylinder #6 High To Low Side Short
Quick Answer
The fuel injectors are connected to the high-pressure fuel rail and deliver a calibrated amount of fuel directly into the combustion chamber. Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1266 indicates Cylinder #6 High To Low Side Short.
- Common causes
- Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1266 Description
What are the Possible Causes of the DTC P1266?
- Faulty Fuel Injector 6
- Fuel Injector 6 harness is open or shorted
- Fuel Injector 6 circuit poor electrical connection
- Faulty Fuel Injector Interface Module
How to Fix the DTC P1266?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1266 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P1266 Audi — Injector 3 Implausible Signal
- P1266 Ford — Cylinder #6 High To Low Side Short
- P1266 Jeep — Glow Plug #4 Circuit
- P1266 Mazda — Cylinder #6 High To Low Side Short
- P1266 Volkswagen — Injector 3 Implausible Signal
Frequently Asked Questions about P1266 Code
1. What are the common symptoms of OBDII code P1266 (Cylinder #6 High To Low Side Short)?
- Common symptoms include engine misfires, rough idling, loss of power, and the Check Engine light illuminating.
2. What causes OBDII code P1266 (Cylinder #6 High To Low Side Short)?
- This code is typically caused by a short circuit in the wiring or connectors associated with the fuel injector for cylinder #6.
3. How can I diagnose OBDII code P1266 (Cylinder #6 High To Low Side Short)?
- Diagnosing this code usually involves inspecting the wiring and connectors related to the fuel injector for cylinder #6 to check for any shorts or damage.
4. Can a faulty fuel injector cause OBDII code P1266 (Cylinder #6 High To Low Side Short)?
- Yes, a faulty fuel injector for cylinder #6 can potentially cause this code to trigger due to electrical issues.
5. What are the potential risks of ignoring OBDII code P1266 (Cylinder #6 High To Low Side Short)?
- Ignoring this code can lead to poor engine performance, decreased fuel efficiency, and potential long-term damage to the engine.
6. How can I repair OBDII code P1266 (Cylinder #6 High To Low Side Short) myself?
- Repairing this code may involve checking and repairing any damaged wiring or connectors associated with the fuel injector for cylinder #6.
7. Is it safe to drive with OBDII code P1266 (Cylinder #6 High To Low Side Short) active?
- It is not recommended to drive with this code active, as it can lead to engine performance issues and potentially cause further damage.
8. How much does it typically cost to repair OBDII code P1266 (Cylinder #6 High To Low Side Short) at a mechanic?
- The cost of repair can vary depending on the extent of the issue, but it may involve wiring repairs or fuel injector replacement, costing a few hundred dollars.
9. Can resetting the Check Engine light resolve OBDII code P1266 (Cylinder #6 High To Low Side Short)?
- Resetting the Check Engine light may temporarily clear the code, but it will likely return if the underlying issue causing the short circuit is not addressed.
10. Are there any preventive measures to avoid OBDII code P1266 (Cylinder #6 High To Low Side Short) in the future?
- Regular maintenance checks, such as inspecting wiring harnesses and connectors, can help prevent issues that may trigger this code.
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