MSD Window Switch question
#2
I did mine by splicing into the tach out put wire right off the computer under the hood. It's a different wire on my 98 than it is on your 99 so either do a search for "tach signal wire" or something like that, or I'm sure someone with a 99+ car will just chime in and tell you which one it is.
#7
Guest
Posts: n/a
this is also tach signal..
https://ls1tech.com/forums/nitrous-oxide/501965-nitrous-related-wiring.html
post #37
https://ls1tech.com/forums/nitrous-oxide/501965-nitrous-related-wiring.html
post #37