01 P0016 - Crankshaft Position Camshaft Position Correlation B… • 02 Engine Knock: Causes, Prevention, and Maintenance • 03 Oil filter vs. oil: Which is more important to change? • 04 The End of Gas Stations? Nuclear Batteries Could Power EVs … • 05 Drivers Urged To Check Their Tires Immediately After Expert… • 06 Your Beginner’s Guide to Soldering Like a Pro • 07 What You Need to Know: Driving with the ABS Light On and Ho… • 08 Eco-Friendly and Powerful: The Best Fuel-Efficient SUVs for… • 09 People Left Concerned After Learning Why Some Hybrids Rando… • 10 P0107 and P0108: Manifold Absolute Pressure (MAP) Sensor Ci… •

DTC codes / P00xx · Fuel and air metering and auxiliary emission controls / P0005

P0005Fuel Shutoff Valve 'A' Control Circuit/Open

P0005 indicates that the powertrain control module (PCM) has detected an open circuit or excessive resistance in the control circuit for fuel shutoff valve 'A', which is used to stop fuel flow under certain conditions such as deceleration or safety shutdown. The PCM commands the valve on or off and monitors the circuit for expected voltage changes; when the feedback does not match the command, it sets this code.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaFuel and air metering and auxiliary emission controls

Symptoms you may notice

  • Illumination of the check engine light, often with no other noticeable symptoms
  • Rough idle or stalling immediately after startup or when decelerating
  • Extended cranking time before the engine starts
  • A noticeable fuel odor or slight seepage around the valve area in some cases
  • Reduced engine performance or hesitation under light throttle

Common causes, most likely first

  1. Broken, chafed, or corroded wiring in the fuel shutoff valve control circuit
  2. Failed fuel shutoff valve solenoid or its internal coil
  3. Loose or corroded electrical connector at the valve or PCM
  4. Blown fuse or faulty relay supplying power to the valve circuit
  5. PCM driver circuit failure (rare but possible)
  6. Aftermarket alarm or remote start system improperly tied into the fuel circuit

How to diagnose and fix it

  1. Verify the code with a scan tool and check for any related pending or history codes
  2. Inspect the fuel shutoff valve connector and wiring for damage, corrosion, or loose pins
  3. Test the valve solenoid resistance with a multimeter and compare to manufacturer specifications
  4. Check for power and ground at the valve connector with the key on and during commanded activation
  5. Perform a voltage drop test on the control circuit to locate excessive resistance
  6. If the circuit and valve test good, check the PCM driver output with a lab scope or bidirectional scan tool
  7. Repair or replace the faulty wiring, connector, valve, or PCM as diagnosed, then clear codes and verify the repair

What most technicians overlook on P0005

  • A fuel shutoff valve that is mechanically stuck open can set an open-circuit code because the PCM sees no change in feedback when it commands the valve, so always verify mechanical operation as well as electrical continuity.
  • Corrosion inside the valve connector often causes intermittent opens that only appear when the engine is hot or vibrating, so wiggle-test the harness while monitoring live data.
  • Some vehicles use the fuel shutoff valve as part of the evaporative emissions system, and a fault there can trigger P0005 alongside EVAP codes, leading to misdiagnosis of the wrong system.
  • Aftermarket remote starters or alarm systems that interrupt the fuel pump circuit can create an open circuit that mimics a failed valve, so always check for non-factory wiring before replacing parts.
  • The PCM may set P0005 if the valve control circuit is shorted to voltage rather than open, so a simple continuity check to ground is not enough; test for both opens and shorts.

Can I keep driving with P0005?

The vehicle may remain driveable because the fuel shutoff valve is primarily a safety and emissions device, but continued driving with an open circuit can cause stalling or a no-start condition. Avoid heavy acceleration or high-speed driving until the fault is repaired, and do not ignore the warning light if you notice fuel odors or performance issues.

Tools that help

Tools we recommend are in the Auto Veteran shop on Amazon. As an Amazon Associate we earn from qualifying purchases.

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage