P1667 Code - Fuel Injector 2 Mechanical Fault
Quick Answer
The Fuel Injector is an electronically controlled mechanical device that is supplied with pressurized fuel by the fuel pump and when energized atomizes the fuel into a fine mist so that it can burn easily in the engine. Common causes include Faulty Fuel Injector, Fuel Injector harness is open or shorted, Fuel Injector 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
- P1667 indicates Fuel Injector 2 Mechanical Fault.
- Common causes
- Common causes include Faulty Fuel Injector, Fuel Injector harness is open or shorted, Fuel Injector 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 P1667 Description
The Engine Control Module (ECM) monitors the Fuel Injector. The ECM sets the Diagnostic Trouble Code (DTC) when the Fuel Injector is not to factory specifications.
What are the Possible Causes of the DTC P1667?
- Faulty Fuel Injector
- Fuel Injector harness is open or shorted
- Fuel Injector circuit poor electrical connection
How to Fix the DTC P1667?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1667 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
- P1667 Audi — Fuel Injector 2 Mechanical Fault
- P1667 Buick — Reverse Inhibit Solenoid Control Circuit
- P1667 Cadillac — Reverse Inhibit Solenoid Control Circuit
- P1667 Chevrolet — Reverse Inhibit Solenoid Control Circuit
- P1667 Ford — IDM Circuit Malfunction
- P1667 GMC — Reverse Inhibit Solenoid Control Circuit
- P1667 Land Rover — Engine Anti-Theft Signal Circuit Low
- P1667 Volkswagen — Fuel Injector 2 Mechanical Fault
Frequently Asked Questions about P1667 Code
1. What are the common symptoms of OBDII code P1667 (Fuel Injector 2 Mechanical Fault)?
- Common symptoms include rough idling, misfiring, decreased engine performance, and increased fuel consumption.
2. What are the possible causes of a P1667 fault code related to Fuel Injector 2?
- Possible causes can include a faulty fuel injector, wiring issues, poor electrical connection, or a problem with the Engine Control Module (ECM).
3. How can I diagnose a P1667 fault code indicating a mechanical issue with Fuel Injector 2?
- Diagnose by checking the electrical connections to the fuel injector, testing for continuity in the wiring, and using a scan tool to monitor injector operation.
4. Can a dirty fuel injector cause a P1667 fault code?
- Yes, a dirty or clogged fuel injector can disrupt fuel delivery and lead to a mechanical fault code like P1667.
5. What are some repair tips for resolving a P1667 fault code related to Fuel Injector 2?
- Repair tips include cleaning or replacing the fuel injector, inspecting and repairing any damaged wiring, and ensuring proper electrical connections.
6. Is it safe to drive with a P1667 fault code indicating Fuel Injector 2 Mechanical Fault?
- It is not recommended to drive with this fault code, as it can lead to engine performance issues and potential damage if left unresolved.
7. Can a P1667 fault code be triggered by a faulty Engine Control Module (ECM)?
- Yes, a malfunctioning ECM can send incorrect signals to the fuel injector, resulting in a mechanical fault code like P1667.
8. How do I reset the OBDII code P1667 after repairing the issue with Fuel Injector 2?
- The code can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the ECM's memory.
9. Will a P1667 fault code clear on its own if the issue with Fuel Injector 2 is resolved?
- In some cases, the fault code may clear on its own after a few successful drive cycles once the underlying issue with the fuel injector is fixed.
10. Can a P1667 fault code affect other components of the vehicle's fuel system?
- Yes, if left unresolved, a P1667 fault code can lead to issues with other fuel injectors, engine performance, and overall fuel system efficiency.
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