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P0401 Diagnostic Trouble Code Discussion for April 2004

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
1996 Toyota Camry DX 2.2L MIL Lamp on VIN: 4T1BG12K5T
P0401: EGR System Insufficient Flow Detected. ... post. WE have a recurring p0401. I ran the trouble code tree according to Michell and found nothing wrong. I've cleared this code three times over the last four or five months. I also checked the map sensor using the method found in the Snap On troubleshoo...
April 02, 2004
1996 Toyota Corolla 1.6L MIL Lamp on VIN: 2T1BA02E8T
P0401: insuffecent flow egr. hello techs! this car came in with the check engine light on,p401. custemer had the vehicle at another shop, they told him that it needed a vacume modulater and vsv switch for the egr. he had it replaced, did not fix the light. brought the car to my shop did a...
April 05, 2004
1994 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52L7R
P0401: EGR flow problem. ... 2 code the low flow and pintle position. The EGR valve was replaced and passages where cleand. The light still on so PCM was changed.Light was off. Customer came back 2 weeks later with ses light on code P0401 low flow EGR. We have rechecked everything The...
April 07, 2004
1997 Ford Contour 2.5L Cuts out, MIL Lamp on
P0401: Exhaust Gas Recirculation Flow Insufficient Detected. ... in with the MIL light on and code P0401 for insuficient EGR flow. I clean the valve, passges, etc. Looked at DFPE and all looks good now. Try starting the engine to test drive, it starts and stalls. The only way to keep the engine running is if I hold the ...
April 19, 2004