Fuel Volume Regulator Control Circuit Range/Performance Problem (Bank 1)
This code indicates an issue with the fuel volume regulator on Bank 1.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
There's a problem with the fuel system that controls how much fuel is delivered to the engine, which can affect performance and efficiency.
What the computer is actually seeing
The engine control module (ECM) monitors the fuel volume regulator's performance. If the regulator's position is out of the expected range (usually around 0.5 to 4.5 volts for the position sensor), the ECM sets this code.
What a healthy reading looks like
The fuel volume regulator should operate at 0.5-4.5 volts; otherwise, it may trigger a fault.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the vehicle's fuel level; ensure it's above 1/4 tank. Decision: If low, refuel.
- 22. Inspect the wiring and connectors to the fuel volume regulator for damage or corrosion. Decision: If damaged, repair or replace the wiring/connector.
- 33. Test the fuel volume regulator with a multimeter to confirm it operates within the expected voltage range (0.5-4.5 volts) under various engine conditions. Decision: If not within range, replace the regulator.
- 44. Check the fuel pressure; it should be within the manufacturer's specified limits (usually 30-50 psi). Decision: If not within limits, check the fuel pump.
Common causes
- Bad fuel volume regulator
- Wiring issue or short circuit
- Defective ECM
- Faulty fuel pump
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended as it can affect engine performance and fuel efficiency.
Will the code come back after clearing?
If the issue isn't resolved, it will likely return.
Why does this code sometimes pair with other fuel system codes?
Fuel system components are interconnected; a fault in one can affect others.
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