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Code

P0108

Air intake

MAP sensor circuit high input

The manifold pressure signal reads too high.

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Most likely causes

Faulty MAP sensor
Open wiring
Broken vacuum line

Symptoms you may notice

Check engine light
Rich mixture
Poor economy

Checks to run

Test MAP voltage
Check the vacuum line
Inspect wiring

Tools you may need

Multimeter

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Air intake

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Mass airflow sensor circuit malfunction

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MAP sensor range / performance problem

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