Fuel Pressure Regulator 2 Control Circuit High
What does P2296 mean?
The P2296 code means the vehicle's onboard diagnostic system has detected: Fuel Pressure Regulator 2 Control Circuit High. This is a moderate severity code.
Common Symptoms
- Check Engine Light illuminated
- Fuel pressure higher than commanded
- Harsh engine idle or surging
- Strong fuel smell from exhaust
- Engine running rich
Probable Causes (Ranked by Likelihood)
- Open circuit in regulator solenoid wiring Very High
- Failed fuel pressure regulator solenoid (open) High
- Disconnected connector at regulator Moderate
- ECM driver circuit open Low
Step-by-Step Diagnostic Procedure
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Check regulator solenoid connector for being unplugged
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Measure resistance of the solenoid coil (infinite reading indicates open)
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Inspect wiring for breaks or open connections
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Verify ECM pin continuity to the solenoid connector
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Check fuel pressure with a mechanical gauge to confirm it is too high
Frequently Asked Questions
Can I drive with code P2296?
Short distances only. Excessively high fuel pressure can damage fuel injectors and catalytic converters over time.
What causes P2296?
Usually an open circuit in the regulator solenoid wiring or a disconnected connector. The solenoid defaults to a high-pressure state when circuit is open.
Is P2296 expensive to fix?
Typically $150 to $600. Check for a disconnected connector first, which is a free fix. Solenoid or wiring replacement is moderately priced.