Autometer Tach Instal Questions.
Autometer Tach Instal Questions. Hi, I am currently working A conversion of A LS1 into A 69 Camaro. Got the car running, now I am finishing up the supporting items. The LS1 is A 98 model engine and PCM My problem is I dont seem to be getting A signal from My White wire #35 out of the blue pcm connector. I have power to the tach and A good ground off the back of the head when I turn the ign switch on I the shift light flashes and the tach zero's as its suppose to however with the engine running the tach does nothing. I have done several searches and actually found A similar problem A individual was having however it doesnt Appear to have ever been resolved so I thought i'd try this again. BTW the tach is set up for A 4cyl. Thanks In advance Larry
Autometer Tach Instal Questions. Thanks for the Replies. I have clipped the Wires As specified by autometer to set for 4cyl. mode. Not sure where to go from here but thanks for the help. Larry
Staging Lane
Joined: Aug 2005
Posts: 93
Likes: 0
From: Pearland Texas
The problem is that the LS1 tach output is a plus positive and the 69 camaro gauge like all tachs from 1962-1996 are negative. Autometer has a tach adapter for the LS1. You will end up not using the tach wire on the LS1, if you use the tach adapter. I have done this trick already.
Originally Posted by Wing Zero
The problem is that the LS1 tach output is a plus positive and the 69 camaro gauge like all tachs from 1962-1996 are negative. Autometer has a tach adapter for the LS1. You will end up not using the tach wire on the LS1, if you use the tach adapter. I have done this trick already.
