OBD Guide
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P142B

Exhaust Gas Recirculation Sensor 'D' Circuit

P142B is an OBD-II diagnostic trouble code meaning: Exhaust Gas Recirculation Sensor 'D' Circuit. Common causes: open or short circuit in the sensor circuit, poor contact in connectors. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Deterioration of engine performance
  • Increased fuel consumption
  • Unstable idle
  • Increased NOx emissions

Causes

  • Open or short circuit in the sensor circuit
  • Poor contact in connectors
  • EGR sensor 'D' faulty
  • Wiring harness damage
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check resistance of EGR sensor 'D'
  4. Replace EGR sensor 'D' if necessary
  5. Check the operation of the EGR system after repair

Related codes

P142AP142CP142D

FAQ

What does the P142B code mean?

P142B is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Recirculation Sensor 'D' Circuit

What causes a P142B error code?

The most common causes of P142B include: Open or short circuit in the sensor circuit; Poor contact in connectors; EGR sensor 'D' faulty; Wiring harness damage.

How do I fix a P142B diagnostic trouble code?

To fix P142B: Check the integrity of the sensor circuit. Inspect connectors and contacts for corrosion or damage. Check resistance of EGR sensor 'D'. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P142B?

Yes, but get it checked soon

How much does it cost to fix P142B?

The estimated repair cost for P142B is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat