OBD Guide

P2BF6

Exhaust Flow Control Valve A Position Circuit Low

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Problems starting the engine
  • Unstable engine operation at idle

Causes

  • Exhaust gas flow control valve malfunction
  • Open or short circuit in the electrical circuit
  • Problems with contacts or connectors
  • Engine control unit malfunction
  • Mechanical valve jamming

How to Fix

  1. Check the electrical circuit of the valve for breaks and short circuits
  2. Check the condition of connectors and contacts
  3. Check valve resistance and operation
  4. Test the signal from the valve position sensor
  5. If necessary, replace the exhaust gas flow control valve

Related codes

Error P2BF6 by Vehicle Brand