Fuel Pressure Regulator 2 Control Circuit Low
The P2295 code indicates that the Engine Control Module (ECM) has detected a low voltage condition in the control circuit of Fuel Pressure Regulator 2. This regulator is typically part of the fuel system on diesel engines or some high-pressure direct injection gasoline engines. The low voltage suggests a short to ground, open circuit, or faulty regulator, which can lead to improper fuel pressure regulation, affecting engine performance and fuel economy.
01. Most Common Causes
- Faulty Fuel Pressure Regulator 2
- Open or shorted wiring in the control circuit
- Poor electrical connection at the regulator or ECM
- Failed ECM (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Engine running rough or misfiring
- Decreased fuel economy
- Hard starting or stalling
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to retrieve all codes and freeze frame data.
Step 2: Visually inspect the wiring and connector for Fuel Pressure Regulator 2 for damage, corrosion, or loose pins.
Step 3: Test the regulator's resistance and compare to manufacturer specs.
Step 4: Check for voltage and ground at the regulator connector with the ignition on.
Step 5: If wiring and regulator are okay, test the ECM output signal.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause poor engine performance, stalling, or damage to the fuel system. Have it diagnosed promptly.
How much does it cost to fix?▼
The cost typically ranges from $150 to $400, including parts and labor, depending on the cause and vehicle make/model.