OBD Guide

P2A0A

Manifold Absolute Pressure Sensor B Circuit

P2A0A is an OBD-II diagnostic trouble code meaning: Manifold Absolute Pressure Sensor B Circuit. Common causes: open or short circuit in the sensor circuit, poor contact in the sensor connector. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Rough engine operation
  • Increased fuel consumption
  • Dips during acceleration
  • Check Engine Light Is On
  • Problems starting the engine

Causes

  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • MAP B sensor malfunction
  • Problems with the engine ECU
  • Mechanical damage to the sensor

How to Fix

  1. Check the integrity of the wiring to the sensor
  2. Clean sensor connector contacts
  3. Check the functionality of the sensor with a multimeter
  4. Replace MAP sensor if necessary
  5. Test work after repair

Related codes

Error P2A0A by Vehicle Brand

FAQ

What does the P2A0A code mean?

P2A0A is an OBD-II diagnostic trouble code that indicates: Manifold Absolute Pressure Sensor B Circuit

What causes a P2A0A error code?

The most common causes of P2A0A include: Open or short circuit in the sensor circuit; Poor contact in the sensor connector; MAP B sensor malfunction; Problems with the engine ECU.

How do I fix a P2A0A diagnostic trouble code?

To fix P2A0A: Check the integrity of the wiring to the sensor. Clean sensor connector contacts. Check the functionality of the sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2A0A?

Limited driving only, diagnose soon

How much does it cost to fix P2A0A?

The estimated repair cost for P2A0A is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat