no tach

[vpracer325]

87 325 s52 swap obd2 everything works except the tach. I found the 3 pin white connector behind glove box do I just tie that in to the crank sensor input to computer or am I missing something? Thanks!!

[vpracer325]

fixed

You have to tie Into a white 3 prong connected behind glove box thanks Dave@ markertmotorworks

[Poeman446]

Dang, I just saw this. It's the c104 I think. The black wire is for the tach. Glad you got it.