× 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
Code 42: EST open on startup
Posted to Technical Discussion Forum on 11/23/1998 1 Reply

Code 42: Bypass open on startup

HEI EST

Ok, from here we take a look at what happens when the engine is started with the EST line open. When the engine is cranking or rpms are below the threshold, the ECM monitors the EST line for toggling hi/lo. Since our... Login to read more.

Files Referenced:

thumbnail

1 Replies Received (View Replies)