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P0401 Diagnostic Trouble Code Discussion for December 2020

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
2001 Suzuki Swift GA 1.3L Poor Idle Quality, Stall VIN: 7AT0GK0CX1
P0401: EGR flow insufficient. ... at my new work and I am taking on a Suzuki Swift that has been giving an intermittent fault for several months :) Apparently it has had new coils, new EGR, and every time it goes well for a week then suddenly has a misfire. Apparently the last time it...
December 08, 2020
2001 Suzuki Swift GA 1.3L Stall, Misfire VIN: 7AT0GK0CX1
P0401: EGR flow insufficient. ... Initially I was unanimously advised to check the purge valve when I first posted this problem. Occasionally the vehicle runs rough. The last time the customer drove 90km then stopped and filled up with fuel the vehicle cranked but would not start agai...
December 14, 2020
2001 Suzuki Swift GA 1.3L Stall, Misfire VIN: 7AT0GK0CX1
P0401: EGR flow insufficient. ... Initially I was unanimously advised to check the purge valve when I first posted this problem. Occasionally the vehicle runs rough. The last time the customer drove 90km then stopped and filled up with fuel the vehicle cranked but would not start agai...
December 15, 2020
2000 Buick Park Avenue 3.8L MIL Lamp on VIN: 1G4CW54K0Y
P0401: Insufficient EGR Flow Detected. Car won't pass EGR for state inspection. Ports seem clear. When the EGR valve is taken off the manifold car will stall most of the time but not always. When I command EGR from scan tool it only gets a little rough. I jumpered the pintle to wide open and st...
December 30, 2020