OBD2 code P0006 indicates a problem with the “Fuel Shutoff Valve ‘A’ Control Circuit Low,” pointing to an electrical issue that leads to a lower than expected signal in the circuit controlling the fuel shutoff valve.
This valve is crucial for managing fuel flow to the engine; a malfunction can result in symptoms like intermittent loss of power, rough idling, occasional stalling, and difficulty starting. Addressing this issue is vital for ensuring reliable vehicle operation and preventing unexpected engine shutdowns.
P0006 quick overview
| Meaning | P0006: Fuel Shutoff Valve “A” Control Circuit Low |
| Is it serious? | Yes, it can affect the vehicle’s performance and reliability, potentially leading to situations where the vehicle stalls or cannot be started. |
| Possible causes | – Faulty fuel shutoff valve – Damaged or corroded wiring harness – Poor electrical connections |
| How to diagnose? | Inspect the wiring harness for signs of damage or corrosion. Check the fuel shutoff valve for proper operation and connectivity. Perform a voltage test on the control circuit to identify any electrical issues. Ensure there’s proper communication between the fuel shutoff valve and the vehicle’s computer system. |
P0006 Meaning
When you encounter the P0006 code, it’s like the electrical signal that tells your car’s fuel gatekeeper—the fuel shutoff valve—to open or close, is whispering instead of speaking clearly. This valve decides when to stop or allow fuel flow to the engine, and if its control circuit isn’t getting enough juice, it might not work as expected.
This can lead to your car acting up, with symptoms like sputtering or stalling because the engine isn’t getting the fuel it needs consistently. Fixing this involves checking the valve itself and the electrical pathways leading to it to make sure messages are getting through loud and clear.
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How to fix P0006 – learn from mechanics
I looked into P0006 service cases at iatn.com website where in the private forums the mechanics seek advice from other mechanics. I looked up a bunch of cases to help you decide how to fix your issue and see what would a real mechanic do to solve it.
Case #1: Chevrolet P0006
Vehicle information 2014 Chevrolet Silverado 1500 LTZ 5.3L V8
Issue + repair history
- Vehicle experiences intermittent loss of power and rough idling
- Previous repairs include replacing the fuel pump and cleaning the fuel injectors
- Current symptoms include occasional stalling and difficulty starting
Other OBD2 Codes + Test Results
- P0006 – Fuel Shutoff Valve “A” Control Circuit Low
Mechanic suggestions
- Inspect the wiring harness for any signs of damage or corrosion
- Check the fuel shutoff valve for proper operation and connectivity
- Perform a voltage test to diagnose any issues with the control circuit
Final fix Upon inspection, it was discovered that a faulty connection in the wiring harness was causing the low circuit. Repairing the wiring harness resolved the issue, and the vehicle now runs smoothly without any stalling or loss of power.
Case #2: Toyota P0006
Vehicle information 2012 Toyota Camry SE 2.5L
Issue + repair history
- Vehicle occasionally stalls while driving at highway speeds
- Previous repairs include replacing the throttle body and cleaning the MAF sensor
- Current symptoms include intermittent misfires and difficulty starting
Other OBD2 Codes + Test Results
- P0006 – Fuel Shutoff Valve “A” Control Circuit Low
Mechanic suggestions
- Check the wiring harness for any signs of damage or corrosion
- Inspect the fuel shutoff valve for proper operation and connectivity
- Perform a voltage test to diagnose any issues with the control circuit
Final fix After thorough diagnostics, it was determined that a faulty fuel shutoff valve was causing the low circuit. Replacing the valve resolved the issue, and the vehicle now accelerates smoothly without any hesitation or misfires.
Case #3: Ford P0006
Vehicle information 2016 Ford Explorer XLT 3.5L V6
Issue + repair history
- Vehicle experiences intermittent loss of power and rough idling
- Previous repairs include replacing the fuel filter and cleaning the fuel injectors
- Current symptoms include occasional stalling and difficulty starting
Other OBD2 Codes + Test Results
- P0006 – Fuel Shutoff Valve “A” Control Circuit Low
Mechanic suggestions
- Check the wiring harness for any signs of damage or corrosion
- Inspect the fuel shutoff valve for proper operation and connectivity
- Perform a voltage test to diagnose any issues with the control circuit
Final fix After thorough diagnostics, it was determined that a faulty connection in the wiring harness was causing the low circuit. Repairing the wiring harness resolved the issue, and the vehicle now runs smoothly without any stalling or loss of power.
How to diagnose P0006
I made you an overview of solving this DTC, based on all the advice that was suggested by certified mechanics to address this issue in previously mentioned service cases.
| Diagnostic Step | Brief Explanation |
|---|---|
| Inspect the wiring harness | Look for any damage or corrosion that could impair electrical signals. |
| Check the fuel shutoff valve | Ensure the valve operates correctly and receives proper signals. |
| Perform a voltage test on the control circuit | Determine if there are electrical issues causing the low signal. |
| Ensure proper communication with the computer | Verify that the vehicle’s computer can control the valve effectively. |
Car Diagnostics Training
- Car Electrical basics
- OBD-II scanner basics
- How to use an OBD reader
- Introduction to a Bi-directional Scan tool
- OBD scanner buyer’s guide + discounts
I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko