× 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
Prev Professional Automotive Repair Technical Discussions for September 21, 2026
International Automotive Technicians' Network (iATN) - Members Only
Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM
Help Request Answers
2016 Cadillac Escalade ESV Platinum 6.2L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 1GYS4KKJ9G
**Repeat P0420 and persistent negative Bank 1 fuel trims after AFM delete** Greetings, This is a 2016 Cadillac Escalade with a 6.2L L86 engine and approximately 158,000 miles. The customer first brought it to us for a pre-purchase inspection. It ha... Trouble codes: P0420
View

Fixes & Summaries for GM
Fix/Summary Answers
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next