I almost have all the bugs figured out in my S-10 LT1 swap. I am running a seperate ALDL for the LT1s computer and was wondering what the required wires for link to flash and read the computer are?

I have the A, and M wires run to the connector, and the "B" goes to chasis ground right? Are these the only three that are required?

Oh forgot to mention, the Donor LT1 is a 94 along with the ECM and harness.

 

Can't "flash" the codes on the 94

 

Yes but using tunercat I can "flash" the computer through the ALDL.
I need to know which wires are required to interface.

 

Ahh, sorry misread your post. To hook up to a laptop all you need is "A" and "M". "A" = Ground "M" = Data (top farthest right is Ground(A), bottom farthest right is Data (M))

 

Ahh, thanks for the help.