OBD Guide

P048E

Exhaust Pressure Control Valve A Position Sensor/Switch Circuit High

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

Symptoms

  • Unstable engine idling
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light comes on

Causes

  • Malfunction of the exhaust gas pressure control valve position sensor
  • Open or short circuit in the sensor circuit
  • Problems with the sensor connector
  • Mechanical damage to the exhaust gas pressure control valve
  • Software error in the engine control unit

How to Fix

  1. Check the integrity of the sensor circuit (open circuit, short circuit to positive)
  2. Check the sensor connector for corrosion or damage.
  3. Replace the exhaust gas pressure control valve position sensor if necessary
  4. Check the mechanical operation of the exhaust gas pressure control valve
  5. If necessary, update the ECU software

Related codes

Error P048E by Vehicle Brand