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P0404 Diagnostic Trouble Code Discussion for September 2005

EGR Position Sensor Performance

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Trouble Ticket Help Requests for DTC P0404
Help Request Posted
1998 Chevrolet K2500 Cheyenne 6.5L Excessive Emissions, Hesitation, MIL Lamp on VIN: S6WE114333
P0404: EGR Open Position Performance. ... accelerating with heavy black smoke. Worked on turbo first to see if causing problem with coded p0236. Control working and turbo working. Then moved on to egr codes, found when problem accured the desired egr and the actuall egr w...
September 19, 2005