OBD Guide

P1105

Manifold Absolute Pressure Sensor Malfunction

P1105 is an OBD-II diagnostic trouble code meaning: Manifold Absolute Pressure Sensor Malfunction. Common causes: map sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

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

Symptoms

  • Unstable engine idling
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Problems starting the engine

Causes

  • MAP sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor electrical contact in the sensor connector
  • Vacuum leaks in the intake manifold
  • Problems with the ECU

How to Fix

  1. Check the integrity of the wiring and connectors of the MAP sensor
  2. Check for vacuum leaks in the intake manifold
  3. Test the MAP sensor using a diagnostic scanner
  4. Replace MAP sensor if necessary
  5. Clear error codes and check if P1105 returns

Related codes

Error P1105 by Vehicle Brand

FAQ

What does the P1105 code mean?

P1105 is an OBD-II diagnostic trouble code that indicates: Manifold Absolute Pressure Sensor Malfunction

What causes a P1105 error code?

The most common causes of P1105 include: MAP sensor malfunction; Open or short circuit in the sensor circuit; Poor electrical contact in the sensor connector; Vacuum leaks in the intake manifold.

How do I fix a P1105 diagnostic trouble code?

To fix P1105: Check the integrity of the wiring and connectors of the MAP sensor. Check for vacuum leaks in the intake manifold. Test the MAP sensor using a diagnostic scanner. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1105?

Limited driving only, diagnose soon

How much does it cost to fix P1105?

The estimated repair cost for P1105 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat