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P0105

Overview

Code

P0105

Code Type

P

Code Class

P0

System

Engine

Severity Level

Medium

Emissions Related

true

Drivability Impact

Minor

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0105 indicates a malfunction in the manifold absolute pressure (MAP) or barometric pressure sensor circuit detected by the ECM

Symptoms

Check Engine Light illuminated; Poor acceleration; Rough idle; Engine hesitation

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

The MAP sensor provides critical load data used for fuel and ignition calculations within the engine management system

Possible Causes

Faulty MAP sensor; Vacuum leaks; Damaged sensor wiring or connectors; ECM calibration issues (rare)

Diagnostic Steps

1 Confirm the fault code with a scan tool; 2 Inspect vacuum hoses for leaks or damage; 3 Check MAP sensor wiring and connectors; 4 Monitor live MAP data at idle and under load; 5 Replace the MAP sensor if readings are incorrect

Drive Safety Notes

Vehicles with P0105 may be driven cautiously, but engine performance issues can occur Diagnosis and repair are recommended soon

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