× 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
Re: Variable fuel pump control
Posted to Technical Theory Forum on 1/8/2024

I don't have Toyota SI but it is my understanding that all the theory of operations stuff is in the New Car Features section.

If using All-Data I would look for that ECM pin-out section that shows what to expect at every ECM terminal.

Sorry not more help. Login to read more.