KA620KC Posted May 19, 2011 Report Share Posted May 19, 2011 HELP!!! I've been trying to install an aftermarket tach to my KA in my 620. I've tried tapping into the negative side of the coil and I get nothing at all on my tach. Its a brand new tach too. It is the green w/black wire on the coil correct? Or can I tap right out of the computer? If so which wire is it? I tried doing some research and I do believe it is the yellow w/red for the tach signal. Can someone help a brotha out? Quote Link to comment
68Datsun510 Posted May 19, 2011 Report Share Posted May 19, 2011 Some tachs need to be set to 4 cyl mode, usually a switch inside the tach, make sure your switched power and ground are functioning. My autometer worked fine on the KA Quote Link to comment
KA620KC Posted May 19, 2011 Author Report Share Posted May 19, 2011 Yeah its set for 4 cyl. I've tried connecting to the green wire on the coil but don't get anything out of it. what gives?? Quote Link to comment
flatcat19 Posted May 19, 2011 Report Share Posted May 19, 2011 What brand of tach? Have you been to their website to see if they have an FAQ/Tech section? Quote Link to comment
KA620KC Posted May 19, 2011 Author Report Share Posted May 19, 2011 GOT IT WORKING!!! I had the ground hooked up to what I thought was a good ground. but it wasn't I didn't realize the factory wiring switches the ground wires.....:unsure: Quote Link to comment
flatcat19 Posted May 19, 2011 Report Share Posted May 19, 2011 Cheers. IBTL. :P Quote Link to comment
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