What Does P2667 Mean?
The PCM has detected voltage on the Fuel Shutoff Valve B control circuit that is higher than expected specifications. This typically indicates a short to voltage source or an open driver circuit in the PCM.
Common Causes
35%
Short to voltage in control circuit wiring from chafed insulation
25%
Failed PCM driver circuit stuck in high state
20%
Fuel shutoff valve B solenoid with internal short to power
15%
Crossed wires in harness causing voltage feedback
5%
Connector terminal backing out causing cross-circuit contact
Diagnostic Steps
1
Step 1: Disconnect fuel shutoff valve B and check for voltage present on control wire with key on
2
Step 2: Trace wiring harness for contact with power sources or other circuits
3
Step 3: Check for voltage at valve connector with PCM commanding valve off
4
Step 4: Measure resistance between control wire and battery voltage (should be infinite)
5
Step 5: If no external shorts found, test PCM driver output or replace PCM
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The PCM has detected voltage on the Fuel Shutoff Valve B control circuit that is higher than expected specifications. This typically indicates a short to voltage source or an open driver circuit in the PCM.
The most common cause of P2667 (Fuel Shutoff Valve "B" Control Circuit High) is: Short to voltage in control circuit wiring from chafed insulation
Typical repair costs for P2667 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May cause fuel management issues leading to poor performance or stalling. Safe for short-distance driving but should be repaired promptly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2667 to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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