OBD Guide
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P141B

Exhaust Gas Recirculation Sensor 'B' Circuit Intermittent/Erratic

P141B is an OBD-II diagnostic trouble code meaning: Exhaust Gas Recirculation Sensor 'B' Circuit Intermittent/Erratic. Common causes: damage to the egr sensor wiring harness, poor contact in the sensor connector. Estimated repair cost: $17–67.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Check Engine light comes on
  • Unstable engine idling
  • Increased fuel consumption
  • Reduced engine power
  • Increase in harmful emissions

Causes

  • Damage to the EGR sensor wiring harness
  • Poor contact in the sensor connector
  • EGR position sensor malfunction
  • Short circuit or open circuit
  • EGR valve problems

How to Fix

  1. Check the integrity of the EGR sensor wiring harness
  2. Clean sensor connector contacts
  3. Check resistance and sensor signal
  4. Replace EGR sensor if necessary
  5. Check the operation of the EGR valve

Related codes

P0401P0402P0403P140B

FAQ

What does the P141B code mean?

P141B is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Recirculation Sensor 'B' Circuit Intermittent/Erratic

What causes a P141B error code?

The most common causes of P141B include: Damage to the EGR sensor wiring harness; Poor contact in the sensor connector; EGR position sensor malfunction; Short circuit or open circuit.

How do I fix a P141B diagnostic trouble code?

To fix P141B: Check the integrity of the EGR sensor wiring harness. Clean sensor connector contacts. Check resistance and sensor signal. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P141B?

Yes, but get it checked soon

How much does it cost to fix P141B?

The estimated repair cost for P141B is $17–67. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat