What Does P2296 Mean?
The PCM has detected an abnormally high voltage in the control circuit for fuel pressure regulator 2. This usually indicates a short to power or open circuit preventing proper ground in the regulator control system.
Common Causes
35%
Open circuit in fuel pressure regulator control wiring or connector
30%
Failed fuel pressure regulator 2 solenoid with open coil
20%
Short to voltage in wiring harness between PCM and regulator
15%
PCM internal fault in driver circuit
Diagnostic Steps
1
Step 1: Inspect fuel pressure regulator 2 connector for damage, corrosion, or loose terminals
2
Step 2: Measure resistance of fuel pressure regulator 2 solenoid coil (should be 3-10 ohms typically)
3
Step 3: Check for open circuits in wiring between PCM and regulator using continuity test
4
Step 4: Test for short to power by measuring voltage at regulator connector with key on, engine off
5
Step 5: Verify PCM output signal with oscilloscope or duty cycle meter
Estimated Repair Cost
$150 - $850
Parts + labor, varies by vehicle and location
The PCM has detected an abnormally high voltage in the control circuit for fuel pressure regulator 2. This usually indicates a short to power or open circuit preventing proper ground in the regulator control system.
The most common cause of P2296 (Fuel Pressure Regulator 2 Control Circuit High) is: Open circuit in fuel pressure regulator control wiring or connector
Typical repair costs for P2296 range from $150 to $850, depending on the vehicle, location, and whether you do it yourself or go to a shop.
May cause hard starting, rough idle, or power loss. Vehicle can typically be driven but requires timely repair to prevent fuel system damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2296 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Fuel System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
