OBD Guide

P2D19

Exhaust Flow Control Valve C Position Circuit Low

P2D19 is an OBD-II diagnostic trouble code meaning: Exhaust Flow Control Valve C Position Circuit Low. Common causes: open or short circuit in valve control circuit, exhaust gas flow control valve malfunction. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced engine power
  • Unstable engine operation at idle
  • Increased fuel consumption
  • Unusual noises from the exhaust system

Causes

  • Open or short circuit in valve control circuit
  • Exhaust gas flow control valve malfunction
  • Problems with the wiring harness or connectors
  • Engine control unit (ECU) malfunction
  • Corroded contacts or damaged wiring

How to Fix

  1. Check valve control circuit integrity
  2. Check valve resistance and operation
  3. Inspect the wiring harness and connectors for damage.
  4. If necessary, replace the exhaust gas flow control valve
  5. Check and reflash the engine control unit if necessary

Related codes

Error P2D19 by Vehicle Brand

FAQ

What does the P2D19 code mean?

P2D19 is an OBD-II diagnostic trouble code that indicates: Exhaust Flow Control Valve C Position Circuit Low

What causes a P2D19 error code?

The most common causes of P2D19 include: Open or short circuit in valve control circuit; Exhaust gas flow control valve malfunction; Problems with the wiring harness or connectors; Engine control unit (ECU) malfunction.

How do I fix a P2D19 diagnostic trouble code?

To fix P2D19: Check valve control circuit integrity. Check valve resistance and operation. Inspect the wiring harness and connectors for damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2D19?

Yes, but get it checked soon

How much does it cost to fix P2D19?

The estimated repair cost for P2D19 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat