OBD Guide

P233F

Fuel Pressure Regulator B Solenoid Supply Voltage Control Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Unstable engine operation
  • Reduced engine power
  • Increased fuel consumption
  • Difficulty starting the engine
  • Check Engine Light Is On

Causes

  • Fuel pressure regulator solenoid malfunction
  • Open or short circuit in control circuit
  • Wiring harness damage
  • Problems with the engine control unit
  • Corrosion or oxidation of contacts

How to Fix

  1. Check the integrity of the solenoid control circuit
  2. Test solenoid resistance
  3. Inspect connectors and wiring for damage
  4. If necessary, replace the fuel pressure regulator solenoid
  5. Reset the error code and check if it appears again

Related codes

Error P233F by Vehicle Brand