Got a trigger signal from coil, but (i'm an idiot)

johnhup · Post by **johnhup** » Mon Jun 19, 2006 7:08 pm

This is really odd. I have been trying to get a signal from the negative side of Tach for a while now, and I just got it working on accident.

I am using a wiring harness from DIY Auto Tune which uses a shielded wire for the ignition. So what I did was attached a 1k 1/4 watt resistor to it and wired it to the negative end of the coil. No response.

Then, when I was playing with the multimeter I attached the negative end to the IGN wire's metal sheeth, and the positive end to the positive end of the coil and voila! What the hell? Now what do I do?

I dont think running around with a jumper is the way to run. Any suggestions? MS-II v3.

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Umm yea. I realized that the shielding is supposed to be attached to the coil (pin number 2). I guess its a learning experience. I thought I only needed the negative wire to be attached to the coil.

johnhup · Post by **johnhup** » Mon Jun 19, 2006 9:23 pm

This is kinda weird actually. I just hooked up the stim and measured the voltage from the 9v battery + and Pin 24 and it reads a stead 7.05. Wtf?! Why cant I get a proper reading of the 8.5v coil?