OBD Guide

P26C7

Exhaust Flow Control Valve A Control Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Dips during acceleration

Causes

  • Short circuit in the control circuit to positive
  • Exhaust gas flow control valve malfunction
  • Broken or damaged wiring
  • Problems with the engine control unit
  • Corrosion of contacts or connectors

How to Fix

  1. Check the integrity of wiring and connectors
  2. Measure valve resistance
  3. Check control circuit voltage
  4. Replace the exhaust gas flow control valve if necessary
  5. Reset the error and check the system

Related codes

Error P26C7 by Vehicle Brand