P2296

Fuel Pressure Regulator B Control Circuit High

Q: Is it safe to drive with P2296?

Drive only as needed. Fuel pressure control affects starting and power, so power loss or a stall is possible. Have it diagnosed promptly.

Q: Can I just clear P2296?

It will return until the regulator or its wiring is repaired. Clearing it does not restore correct fuel pressure.

Fuel & air metering Generic OBD-II High

What it means

P2296 means the engine computer detected high voltage in the control circuit for fuel pressure regulator "B." Because this circuit sets fuel delivery pressure, a fault can lead to power loss, hard starting, or stalling. The cause is usually wiring or the regulator solenoid rather than the pump itself.

High

Can I keep driving? Drive with caution — a fuel pressure regulator control fault can cause power loss, hard starting, or stalling until it is repaired.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Loss of power or hesitation
Hard starting or long crank
Rough running or stalling under load

Common causes

Most likely first

Corroded or loose connector at the fuel pressure regulatorLikely
Open or shorted control wire (signal high) to the regulatorCommon
Failed fuel pressure regulator solenoidCommon
Poor ground or supply to the regulator circuitLess often
Failed PCM/ECM driver (less common)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data and inspect the regulator connector and wiring for corrosion, chafing, or shorts to voltage.
Measure the control circuit for the commanded versus actual state to confirm the high-voltage fault.
Check live fuel-rail pressure against the commanded value with a scan tool.
Replace the regulator if the solenoid is open or out of spec.
Verify PCM grounds and supply before replacing the module. Clear and re-test.

FAQ

Quick answers

Is it safe to drive with P2296?+

Drive only as needed. Fuel pressure control affects starting and power, so power loss or a stall is possible. Have it diagnosed promptly.

Can I just clear P2296?+

It will return until the regulator or its wiring is repaired. Clearing it does not restore correct fuel pressure.

Read & clear P2296 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX