92 ecu in 90 and rpms not working..

[keepwishing03]

I'm looking for the link to help me on my ecu..I got a 92 ecu in a 90 body and the rpms are not working..I heard the the 92 ecu is better tuning the fuel trim?let me know guys.thanks..

 

[donniekak]

Go to dsmchips.com. Order the board you solder into your ecu to fix the signal from the 91-94 ecu to make it work with the 90 tach.Don't forget to switch pins 6 and 14.

 

[keepwishing03]

i want the one that i just wire in the harness..will i still need to swicth the wires 6 and 14

 

[donniekak]

Yes, pins 6 and 14 have nothing to do with the tach. Thay are for the idle switch and the maf reset.