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Author Topic:   help
Whitelightning
Member
posted August 07, 2004 03:29 AM
I have new auto meter tach and it works ok then starts to jump really eractic like from two to seven and back , rewired it and it done the same. Put it in my 91 silverado and it works great. My racer has accel coil, msd module and the timming locked. My truck has stock hei so what could make it do this?


jay116
Member
posted August 07, 2004 01:43 PM
The MSD module is the culprit.
You need a shunt filter on the green tach wire. That should make it stop doing that.

------------------
Jason Boivin
http://www.rcracing-team.com


21racer
Member
posted August 07, 2004 03:52 PM
did you hook the tach to the msd box on the side or try to hook to distributor it must be on the box


Whitelightning
Member
posted August 07, 2004 09:24 PM
is that filter something you can buy at the speed shop, I assume?


jay116
Member
posted August 08, 2004 05:31 PM
they should have it. When we bought all MSD ignition they sent it in the kit.

------------------
Jason Boivin
http://www.rcracing-team.com


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