What are the common causes of P2294?

An open in the fuel pressure regulator B control circuit. A failed fuel pressure regulator B. A broken or corroded wire at the regulator B connector. A control circuit fault at the ECM.

Read fuel pressure regulator B commanded state on a scan tool. Test the regulator B control circuit for continuity. Inspect the regulator B connector for corrosion. Check the ECM control output for the regulator B. Replace the fuel pressure regulator B if the circuit tests good. Clear the code and retest.

P2294

Fuel Pressure Regulator B Control Circuit/Open

System: Injector circuits (P code)
Lamp: Check Engine Light
Category: Powertrain - Fuel/Air Metering

What it means

P2294 means Fuel Pressure Regulator B Control Circuit/Open.

Check these first

An open in the fuel pressure regulator B control circuit
A failed fuel pressure regulator B
A broken or corroded wire at the regulator B connector
A control circuit fault at the ECM

What to do next

Read fuel pressure regulator B commanded state on a scan tool
Test the regulator B control circuit for continuity
Inspect the regulator B connector for corrosion
Check the ECM control output for the regulator B
Replace the fuel pressure regulator B if the circuit tests good
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.