I know I saw this somewhere awhile back, but can't find it for anything. I have an 87 GXL with a TII swap. My ECU is the series 4 turbo ECU (obviously) and I am needing to get my temp guage on the cluster working. Can anyone point me in the right direction to a thread so I know what wires to swap around?

Also, I can't access FSM diagrams because they require adobe, which being on dial up is IMPOSSIBLE to DL

 

What engine harness was used to do the swap? NA or turbo? If the NA harness was used, and none of the front harness wires were messed with, the NA cluster should be plug n play with a turbo ECU.

If the turbo harness was used, the front harness has been rewired, and you'll never figure out what's what without a wiring diagram.

It could also be a broken gauge or just an unplugged connector under the hood.

 

If you used a Turbo EM harness on a non turbo car, then visit this thread: https://www.rx7club.com/showthread.p...24#post8481424

And if you did it as that, then take care of the BrR wire in the plug designated X-15 in the pictures.