× 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: 1999 F550 diesel no start
Posted to HD/Fleet Forum on 8/8/2007 1 Reply

[...trimmed text...]

IDM pin 17, PCM pin 95 is FDCS circuit 821

The FDCS (Fuel Delivery Command Signal) includes basic information from the PCM to the IDM on fuel pulse width and timing.

_____________________________... Login to read more.

1 Replies Received (View Replies)