OBD Guide

P2BB1

Alternative Fuel Consumption Too High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Increased consumption of alternative fuel
  • Reduced engine power
  • Unstable operation of the engine using alternative fuel
  • Check Engine Light Illuminates
  • Dips during acceleration

Causes

  • Malfunction of fuel system sensors
  • Problems with alternative fuel injectors
  • Leaks in the alternative fuel supply system
  • Incorrect ECU settings
  • Wear of fuel system components

How to Fix

  1. Check the system for alternative fuel leaks
  2. Diagnose the condition of alternative fuel injectors
  3. Check fuel system sensor readings
  4. Scan the ECU for errors
  5. Calibrate the system if necessary

Related codes

Error P2BB1 by Vehicle Brand