P0097 critical

Fuel Pressure Regulator 2 Control Circuit High

The P0097 code means the vehicle's onboard diagnostic system has detected: Fuel Pressure Regulator 2 Control Circuit High. This is a critical severity code.

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Keep driving?
No -- stop driving
DIY difficulty
hard
Estimated cost
$150 - $600 (parts and labor)
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Common Symptoms

  • Check Engine Light illuminated
  • Engine cranks but will not start
  • Fuel pressure very low or absent
  • Loss of power if engine runs

Probable Causes (Ranked by Likelihood)

  • Open circuit in regulator 2 solenoid wiring Very High
  • Burned out regulator 2 solenoid coil High
  • Disconnected or loose connector Moderate
  • PCM driver circuit open Low

Step-by-Step Diagnostic Procedure

  1. Measure regulator 2 solenoid resistance. Infinite ohms confirms open coil.

  2. Check connector is fully seated with no backed-out pins.

  3. Test wiring continuity from PCM to solenoid connector.

  4. Replace solenoid if wiring tests good.

Frequently Asked Questions

What does circuit high mean for P0097?

Circuit high indicates an open circuit. No current reaches the fuel pressure regulator 2 solenoid, so fuel pressure on that circuit cannot be controlled.

Can a connector issue cause P0097?

Yes, a loose, corroded, or disconnected connector is a common cause. Always check the connector before replacing the solenoid.

How do I locate fuel pressure regulator 2?

Regulator 2 is typically on the fuel rail or the high-pressure fuel pump. Consult your service manual for the exact location on your engine.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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