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2002
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Monte Carlo SS
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Engine Control System Self-Diagnostics - 3.8L
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Diagnostic Tests
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DTC P0401: EGR System Insufficient Flow
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Conditions For Setting DTC
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Conditions For Setting DTC
DTC sets when MAP changes monitored during EGR flow test indicate an insufficient EGR flow.