OBD Guide

C054E

Vacuum Sensor B Range/Performance

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Check engine light comes on
  • Reduced engine power

Causes

  • Vacuum sensor B malfunction
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Mechanical damage to the sensor
  • Sensor contamination

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Clean sensor contacts
  3. Check the sensor readings using a diagnostic scanner
  4. Replace vacuum sensor B if necessary
  5. Clear the error code and check if it returns

Related codes

Error C054E by Vehicle Brand