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On Sat, 2006-07-08 at 18:52 -0700, shalom@ucla.edu wrote: > > I have a question about getting an RPM signal for a tach. I have an FI > distributor so I have a connection with pins (21,12,22) that goes to > the computer. Do I use either pin 12 and (22 or 21) to get the RPM > signal? Or do I get the RPM signal some other way (maybe like an > engine that is not FI)? Does the distributor shaft turn 1 revolution > per 2 revolution of the crank shaft? > You get your tach signal from the points side of the coil. If you have a manual transmission made after 1969, you already have a wire run thru the harness. It is a red wire that is running along with the oil pressure switch wire. The other end comes out under the dash near the fuel pump relay. -- russw <russw@classicvw.org> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~