I bought a 84 2wd subaru, mint, no rust, 80 000km, loaded, i have swapped in a 4wd tranny, lifted it and left the original motor in and all wired up (runs and drives great). there were only 4 wires going to the tranny and the spedo cable. 2 wires for the 4wd light and 2 wires for the reverse light. Now the digital gauges (spedo, tach, fuel, temp, etc.) dont work.... they either dont light up at all, or they are all garbled and a buzzer continuosly goes off. Like i said i didnt touch anything on the motor side. The only other thing there was, was the cruise actuator i removed under the hood, but even it didnt affect the dash when i plugged it in and unplugged it.
any help would be great! im am at a stand still.