jza70 1jz-gte tach signal

otaku64

New Member
Mar 6, 2008
27
0
0
jersey
hello, can someone confirm which lead is used for running an aftermarket tach? it looks like number 17 on the jza70 1jz-gte ecu is rpm1, but there is also an rpm2.

what is everyone using?

thanks!

- sal