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Engine-Codes.com | All About OBDII Engine Codes

P0638 Mitsubishi

P0638 Mitsubishi - Throttle Actuator Control Range/Performance

P0638 Mitsubishi Comments |  Add Comment
Possible causes
- Drive-by-wire control system malfunction
- Throttle actuator malfunction
- Throttle valve malfunction
- PCM malfunction
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Tech notes
Dirty or clogged throttle body can triggered the P0638 code. Before replacing any parts try cleaning the throttle body and reset the engine light.
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Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0638 Mitsubishi Description

The Powertrain Control Module (PCM) compares the actual Throttle Possition (TP) with the target TP when the engine is running. If the difference is more than the specification, the PCM determines that there is a throttle actuator control circuit range/performance problem.

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MITSUBISHI Technical Service Bulletins for P0638 code
2003 MITSUBISHI MONTERO Fuel System, Other Details
2003 MITSUBISHI MONTERO 090000 Fuel System, Other Details
2003 MITSUBISHI MONTERO 090000 Fuel System, Other Details
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