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P0401 Diagnostic Trouble Code Discussion for December 2014

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
2002 Honda Civic EX 1.7L MIL Lamp on
P0401: EGR System Insufficient Flow Detected. ... position sensor and EGR passages cleaned still getting code, reads p0401 recirculation below threshold, possible leak detected. ideas? have checked and tested for leaks, found nothing, passages clean, new parts,,,i am at a loss?
December 08, 2014
2008 Mazda CX-7 Touring 2.3L Hesitation, Surge, Cuts out, Stall, MIL Lamp on VIN: JM3ER29388
P0401: egr flow. Here it goes. Please read everything. This cx7 turbo was at a mazda dealer for months where it had the kitchen sink thrown at it with no improvement. (see the list above) It was originally brought to them with a complaint of surging & loss of power. Eventu...
December 12, 2014