OBD Guide

P26C7

Exhaust Flow Control Valve A Control Circuit High

P26C7 is an OBD-II diagnostic trouble code meaning: Exhaust Flow Control Valve A Control Circuit High. Common causes: short circuit in the control circuit to positive, exhaust gas flow control valve malfunction. Estimated repair cost: $28–89.

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

FAQ

What does the P26C7 code mean?

P26C7 is an OBD-II diagnostic trouble code that indicates: Exhaust Flow Control Valve A Control Circuit High

What causes a P26C7 error code?

The most common causes of P26C7 include: Short circuit in the control circuit to positive; Exhaust gas flow control valve malfunction; Broken or damaged wiring; Problems with the engine control unit.

How do I fix a P26C7 diagnostic trouble code?

To fix P26C7: Check the integrity of wiring and connectors. Measure valve resistance. Check control circuit voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P26C7?

Yes, but get it checked soon

How much does it cost to fix P26C7?

The estimated repair cost for P26C7 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat