Join Now
International Automotive Technicians Network

P1404 Diagnostic Trouble Code Discussion for March 2011

EGR Position Sensor Rationality Closed


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1404
Help Request Posted
2002 Cadillac Seville STS 4.6L Excessive Emissions, Poor running, ping VIN: 1G6KY54912
P1404: EGR Valve Closed Position Performance. ... the water pump crossover housing and 2 codes in the computer. The first code was p0171 the second code was for a dead o2 seson. We replace the water pump, crossover housing and dead o2 sensor. Test drove the vehicle and SES light came on. At this point the...
March 02, 2011
2002 Cadillac Seville STS 4.6L Excessive Emissions, Poor running, ping VIN: 1G6KY54912
P1404: EGR Valve Closed Position Performance. ... the water pump crossover housing and 2 codes in the computer. The first code was p0171 the second code was for a dead o2 seson. We replace the water pump, crossover housing and dead o2 sensor. Test drove the vehicle and SES light came on. At this point the...
March 02, 2011