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Mitsubishi
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2002
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Diamante ES
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Repair and Diagnosis
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Engine Performance
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Engine Controls - Self-Diagnostics
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Diagnostic Tests
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DTC P0403: EGR Control Circuit
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Probable Causes
Probable Causes
Probable causes are:
EGR solenoid failed.
Open or short in EGR solenoid circuit or loose connector.
PCM failed.