lexus082 Posted November 20, 2007 Share Posted November 20, 2007 I am trying to find out where the tach signal is created/generated? Does it come from the ignition coils? Quote Link to comment Share on other sites More sharing options...
UCF3 Posted November 21, 2007 Share Posted November 21, 2007 I don't think so. I believe it's getting a signal from the Cam Shaft, but I might be mistaken. Quote Link to comment Share on other sites More sharing options...
lexus082 Posted November 22, 2007 Author Share Posted November 22, 2007 Figured out it comes of igniter #1. So I got the tach speed off of that (basically inspecting the condition of the wires). After I found that tach signal to be correct and the one at the diagnostic port next to the engine, I swapped out guage clusters and found that the tachometer was displaying the wrong rpm's. At 700 rpms the tach was showing 250-500 rpms. Now I just have a misfire to resolve. :cries: Damn Misfire :chairshot: Quote Link to comment Share on other sites More sharing options...
jzz30 Posted November 22, 2007 Share Posted November 22, 2007 if you change that coil your misfire will probably be solved and your tach will work again! Quote Link to comment Share on other sites More sharing options...
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