× 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

P1406 Diagnostic Trouble Code Discussion for November 2004

EGR Valve Pintle Position Circuit Malfunction

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 P1406
Help Request Posted
1996 Buick Century Custom 3.1L MIL Lamp on VIN: 1G4AG55MXT
P1406: EGR Valve Pintle Position Circuit Malfunction. I'm at wits end. At key on egr pintle is at 0%at idle goes to 18 to 22% when egr is installed but when another egr is plugged in laying on engine and grounded will show 0% I also had this 2nd egr installed on vechicle while running at id showed 20% did not fin...
November 23, 2004