OBD Guide

P240E

Alternative Fuel High Pressure System Leak

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$17–89 (est.)

Symptoms

  • Gas smell in or around the car
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Is On
  • Unstable engine idling

Causes

  • Damaged or worn seals and gaskets
  • Cracks in high pressure pipelines
  • Incorrectly tightened connections
  • Defective system components (reducer, valves)
  • Corrosion of metal parts of the system

How to Fix

  1. Visually inspect the system for obvious leaks
  2. Checking the tightness of the system using a leak detector
  3. Replacing damaged seals and gaskets
  4. Repair or replacement of damaged pipelines
  5. Checking and tightening all system connections

Related codes

Error P240E by Vehicle Brand