90 talon rpm gauge not working

[1990talontsi]

I swapped a 90+ 6 bolt motor into my talon and the rpm gauge is not working
i dont know why it is not working can anyone give me any advice?

 

[tkelly27]

I'm 100% sure you should stop bumping your threads. That's not allowed here, and for good reason seeing how this thing has 24 replies someone might think it was solved already.

http://www.dsmtuners.com/forums/art...4-ecu-swap-into-1990-dsm-ignition-wiring.html
converting a 1990 to a 1991-1994 ecu system

It took me 10 seconds to search on google to find both of those.

 

[1990talontsi]

k well i have the ecu in my car and the car is running fine
i swapped those pins and i got a cel so i swapped them back to normal
im trying to find a 100% sure answer on what is wrong
so i need someone with experience on how to get this figured out

 

[Highbooost]

Sounds like you need to start testing wires for continiuty, your setup should allow the tach to work. I can not give any other advice. I do have one question, did the tach work before the swap?

Later Dr Turbo

 

[1971FordCrewCab]

[you have to hook into the ecm somehow