OBD Guide
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B1343

Recirculation Actuator

B1343 is an OBD-II diagnostic trouble code meaning: Recirculation Actuator. Common causes: egr solenoid valve malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Increased fuel consumption
  • Unstable engine idling
  • Reduced engine power
  • Increased emissions

Causes

  • EGR solenoid valve malfunction
  • Open or short circuit in wiring harness
  • Dirty or jammed EGR mechanism
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the integrity of the wiring harness and connections
  2. Check the resistance and operation of the EGR solenoid valve
  3. Clean or replace the EGR mechanism
  4. Check and, if necessary, replace the engine control unit

Related codes

P0401P0402P0403

FAQ

What does the B1343 code mean?

B1343 is an OBD-II diagnostic trouble code that indicates: Recirculation Actuator

What causes a B1343 error code?

The most common causes of B1343 include: EGR solenoid valve malfunction; Open or short circuit in wiring harness; Dirty or jammed EGR mechanism; Problems with the engine control unit (ECU).

How do I fix a B1343 diagnostic trouble code?

To fix B1343: Check the integrity of the wiring harness and connections. Check the resistance and operation of the EGR solenoid valve. Clean or replace the EGR mechanism. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1343?

Limited driving only, diagnose soon

How much does it cost to fix B1343?

The estimated repair cost for B1343 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat