Yes, I have used the optical tachometer kit described on the page and designed and built by myself, as well as having about 50 of those kits out in the field over the last 6 years (and countless folks who used the basic design for their own circuit):
-
http://vwdieselparts.com/forum/viewtopic.php?t=5887I also have heard of folks using the Dakota Digital convertor, which also requies a calibration step. My tach signal generator is designed to be 100% accurate out of the box, no calibration required.
What the poster was likely referring to as "didn't work" was that he was not able to follow the brief description of the gas tach recalibration procedure that I had a link to on my site. I am not the author of that article, nor have I tried it. Someone referred me to that writeup many years ago, and I obtained a copy to place on my page from the author, Mike Musick. He states that he has used those directions to modify 3 gas tachs.
Topic: wierd tach problems (Read 6304 times)
