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I´ve have a problem, I´ve checked the search forums and did´t find anything.
Have a vette Lt1 1992
I installed the MSD 6AL with a coil blaster partnr: 8226 with a harness 8876. Everyting went well exept the tachomteter get freaked out when I reach 4000rpm and the "Service ASR" is warning.
When I take away the MSD box everyting works. I read in a thread that I must do someting with a the cabel to the tach and attach that one on the tach output on the MSD box.
That I understand in the garage, but what cabel shall I cut and put in the MSD box? Or is it some else trick to make this work?
From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
You need to remove the tac filter. The MSD already has a tac filter built in so the 2 of them screw each other up.
Your tac filter is a little box near the ignition coil which is basically built into the wring harness. It will have 3 wires coming out of it 2 white and one black. It needs to be removed.
I used the counterpart before, the Accel 300+. I had the same problem and i ended up disconecting the box. Funny it was a 92, it burned on the freeway on 7 Jan 2003. Watch out, fiberglass burns FAST
Well it was as you told me, but the white from the "intake" I had to connect with the white from the coil to have the tach to work, but it was as you told me (once again)