ist dwa
10+ Year Contributor
- 727
- 513
- Nov 5, 2009
-
Centerville,
Ohio
I have a DIS 2 with the tach wire mode to eliminate the need for a tach adapter. Disclaimer I bought the 8969 window switch used on EBAY. The system powered up and I can adjust it, I had it set to 2 cyl waste spark. Other weird thing was the unit powered up before I installed the ground wire for the 8969.
I tried attaching the 8969 white wire to the tach output on the MSD dis 2 (part of the tach wire mode pictured below) , but it didn't work.....well it did read but it read exactly double real RPMs which won't work. I then switched the 8969 white wire to the negative side of the coil brwn/whte wire at the MSD unit, and same result read double. I then on the 8969 cycled through the settings of available types of cylinders and then it killed the car and read 0, at that point I disconnected the damn thing as not wanting to mess anything up, after disconnection the car runs and drives normal as before. I have given up, did I do it wrong, do I need a tach adapter, or is the unit junk. The company MSD was randomly closed for no reason Friday when I called so no help there.
Help would be appreciated.
I tried attaching the 8969 white wire to the tach output on the MSD dis 2 (part of the tach wire mode pictured below) , but it didn't work.....well it did read but it read exactly double real RPMs which won't work. I then switched the 8969 white wire to the negative side of the coil brwn/whte wire at the MSD unit, and same result read double. I then on the 8969 cycled through the settings of available types of cylinders and then it killed the car and read 0, at that point I disconnected the damn thing as not wanting to mess anything up, after disconnection the car runs and drives normal as before. I have given up, did I do it wrong, do I need a tach adapter, or is the unit junk. The company MSD was randomly closed for no reason Friday when I called so no help there.
Help would be appreciated.
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