× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P1408 Diagnostic Trouble Code Discussion for May 2004

Manifold Absolute Pressure Sensor Signal Performance

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 P1408
Help Request Posted
1997 Ford F-150 Lariat 4.6L MIL Lamp on VIN: 1FTDX1862V
P1408: koeo egr low floe detected. ... p1401, egr low flow and KOEO code p1408 egr low flow detected.Vacuum source to egr is ok. Wiring and reference voltage to DPFE sensor is good. DPFE sensor checks ok and voltage changes when vacuum is applied to reference ...
May 19, 2004