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P0108

Overview

Code

P0108

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 P0108 indicates that the MAP sensor signal is higher than the expected operating range detected by the ECM

Symptoms

Check Engine Light illuminated; Rough idle; Poor fuel economy; Black exhaust smoke

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

Excessively high MAP readings can cause incorrect fuel delivery and unstable engine operation

Possible Causes

Faulty MAP sensor; Short to voltage in wiring; Incorrect sensor reference voltage

Diagnostic Steps

1 Scan and confirm the fault code; 2 Inspect wiring for shorts to voltage; 3 Monitor live MAP readings; 4 Compare readings with known good values; 5 Replace the MAP sensor if necessary

Drive Safety Notes

Continued driving may increase emissions and fuel consumption Diagnosis should be performed promptly

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