Couple items, FWIW.
On the 91 GMC, 7.4L, electric auto trans there are two emission pacakages with 2 different ALDL data lines. You only show one option, and my luck is that it doesn't link. LOL
The Diacom shows 2, and it links in the light emission package mode.
When linking to a 87 GM Pickup with a 747 ecm looks like RPM and VSS are swapped. I only had a limited amount of time on that, but I think I had everything right. If you want to double check your end, I'll double check mine.
Of course, I find out hours before a 1,000 mile trip when it would have been so handy, LOL.
On the 91 GMC, 7.4L, electric auto trans there are two emission pacakages with 2 different ALDL data lines. You only show one option, and my luck is that it doesn't link. LOL
The Diacom shows 2, and it links in the light emission package mode.
When linking to a 87 GM Pickup with a 747 ecm looks like RPM and VSS are swapped. I only had a limited amount of time on that, but I think I had everything right. If you want to double check your end, I'll double check mine.
Of course, I find out hours before a 1,000 mile trip when it would have been so handy, LOL.
) Email me and I'll send you the config file and instructions (I'll also include it in the next VehiclePak, which will just be screen updates).
