OBD Guide

P2373

Fuel Volume Regulator B Control Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable idling
  • Difficulty starting the engine

Causes

  • Short circuit to positive in the control circuit
  • Malfunction of fuel volume regulator B
  • Wiring harness damage
  • Problems with the engine control unit
  • Corrosion or poor contact in connectors

How to Fix

  1. Check control circuit for short circuit
  2. Test fuel volume regulator B
  3. Inspect the wiring harness for damage
  4. Check connectors and contacts
  5. If necessary, replace the fuel volume regulator

Related codes

Error P2373 by Vehicle Brand