Camaro tach with MSD 6AL issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

VA72C10 · 07-11-2010, 01:24 AM

I installed a camaro tach I had purchased from a board member and had said he tested it and I trust them. Got it all into the gauge cluster, hooked up the ground to a good known ground, the tach to the tach outlet on the HEI, and the power to a 12V source. other parts were grounded properly and it's not in contact with the printed circuit as there are either the plastic grommets or electrical tape isolating it. However, no signal at all. There is a MSD 6AL box powering the tach. tried hooking the tach to that wire but no signal which I assumed since I think that's a digital signal. Any ideas?

07-11-2010, 01:24 AM	#1
VA72C10 VA72C10 Join Date: Mar 2008 Location: Midlothian, VA Posts: 25,269	Camaro tach with MSD 6AL issues I installed a camaro tach I had purchased from a board member and had said he tested it and I trust them. Got it all into the gauge cluster, hooked up the ground to a good known ground, the tach to the tach outlet on the HEI, and the power to a 12V source. other parts were grounded properly and it's not in contact with the printed circuit as there are either the plastic grommets or electrical tape isolating it. However, no signal at all. There is a MSD 6AL box powering the tach. tried hooking the tach to that wire but no signal which I assumed since I think that's a digital signal. Any ideas? __________________ Looking for a 67-72 swb or blazer project in or around VA.



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