OBD Guide
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P141A

Exhaust Gas Recirculation Sensor 'A' Circuit Intermittent/Erratic

P141A is an OBD-II diagnostic trouble code meaning: Exhaust Gas Recirculation Sensor 'A' Circuit Intermittent/Erratic. Common causes: damage to the egr sensor wiring harness, poor contact in the sensor connector. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Check Engine light comes on
  • Unstable engine idling
  • Reduced engine power
  • Increased fuel consumption
  • Possible engine detonation

Causes

  • Damage to the EGR sensor wiring harness
  • Poor contact in the sensor connector
  • Malfunction of the EGR sensor itself
  • Problems with the engine control unit
  • Contact corrosion or oxidation

How to Fix

  1. Check the integrity of the EGR sensor wiring harness
  2. Clean sensor connector contacts
  3. Check the sensor resistance (compare with the nominal value)
  4. Replace EGR sensor if necessary
  5. Check the operation of the EGR system after repair

Related codes

P0401P0402P0403

FAQ

What does the P141A code mean?

P141A is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Recirculation Sensor 'A' Circuit Intermittent/Erratic

What causes a P141A error code?

The most common causes of P141A include: Damage to the EGR sensor wiring harness; Poor contact in the sensor connector; Malfunction of the EGR sensor itself; Problems with the engine control unit.

How do I fix a P141A diagnostic trouble code?

To fix P141A: Check the integrity of the EGR sensor wiring harness. Clean sensor connector contacts. Check the sensor resistance (compare with the nominal value). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P141A?

Yes, but get it checked soon

How much does it cost to fix P141A?

The estimated repair cost for P141A is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat