P2667 code meaning
Fuel Shutoff Valve B Control Circuit High
What P2667 means
With P2667 the module measures excess voltage on the wire that drives shut-off valve B, usually because the wire touches a supply circuit. Safety matters here: on a low-side driven valve a short to voltage can keep the coil energised even when the module wants the valve closed, so the gaseous fuel may not be shut off reliably. No manufacturer explains P2667 publicly. GM's bi-fuel Impala relies on two normally closed cut-off valves that the ECM opens only while the engine runs on CNG, and falls back to gasoline whenever either fuel system reports a problem; Ford lists the open-circuit sibling P2665. P2665 and P2666 cover the open and grounded circuit, P0007 the high fault on valve A. Have it checked promptly and use the manual tank valve if gas can be smelled.
P2667 at a glance
- Check engine lightUsually not
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2667
- Gas mode disabled, operation on gasoline only
- Fuel mode lamp indicates an error
- Possible gas smell if the valve does not close
Common causes of P2667
- Most likelyControl wire shorted to a voltage supply
- PossibleCorrosion bridging pins in the valve connector
- Less likelyFaulty output stage in the control module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fuel shutoff valve bSolenoidWiring harness
What each part of P2667 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 6 | Area: computer (engine control module) and output circuits. |
| 67 | The exact fault in that area. |
What to do next
- Note P2667 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2667
What does P2667 mean?
P2667 means "Fuel Shutoff Valve B Control Circuit High". With P2667 the module measures excess voltage on the wire that drives shut-off valve B, usually because the wire touches a supply circuit. It is a generic code, so it means the same on every make.
Is it safe to drive with P2667?
Drive gently and only to a workshop. With P2667 the car can go into limp mode (reduced power) to protect itself.
Will P2667 fail an emissions test?
Yes, it can. P2667 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2667 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will P2667 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.