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Montero XLS
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DTC P0401: EGR Insufficient Flow Detected
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Probable Cause
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Probable Cause
EGR valve does not open.
EGR control vacuum is too low.
EGR solenoid failed.
Open or short in EGR solenoid circuit, or loose connector.
Manifold Differential Pressure (MDP) sensor failed.
Powertrain Control Module (PCM) failed.