× 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

P0402 Diagnostic Trouble Code Discussion for August 2008

EGRC-BPT Valve Function

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 P0402
Help Request Posted
2007 GMC Sierra 2500 HD Classic SLT 6.6L MIL Lamp on VIN: 1GTHK23D97
P0402: Exhaust Gas Flow Excessive. ... duramax. Several months ago truck came in with mutiple codes, poor run and blowing black smoke. Another tech scanned and diagnosed it and asked me to help. At that time it had turbo over boost codes, egr codes, and I believe a maf out of range. After runni...
August 09, 2008
2000 Mercury Sable LS Premium 3.0L MIL Lamp on VIN: 1MEFM59S8Y
P0402: egr flow high/dpfe sensor voltage high. ... stuck;thanks in advance for all who can help. Here, I have a 2000 Merc. Sable wagon, customer bought it used last May, no trouble until MIL came on, code P0402, excessive egr flow. I know what you're thinking, and so was I, but we're both wrong. Checked th...
August 22, 2008