Is the blue wire that runs from my SDS ECU to the aluminum box on my Blaster2 coil a square wave 0-5v signal? I have to connect my Zeitronix wideband to the tach signal and I need to aquire a 0-5v square wave signal, and am not sure where to get it. I am not sure I can use the factory tach wire off the primary side of the coil, as I don't know what it puts out. Hope you guys can help!
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The green wire that comes out of the coil driver is used for a tach signal. Don't know what the voltage is coming out of it. That's the wire that Im using for my wideband O2 and tach.
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That is good to know, as the tach feed wire at the coilpacks is designed to emulate a square pulse with 200v spikes...just like a signal from the primary side of the stock coil. My SDS is a 3E system, coil and distributor style, so I am going to try that first :D. Thanks for the help!
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Well, I tried the coil first...but found too many spikes in the signal. The plot off the datalogger was too unstable, so I tried the 5v wire running from the coil amplifier to the SDS ECU and it worked PERFECTLY! :D.
Next up on the list is to tap the MAP sensor 0-5v wire so I can log my boost too.
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