soundhd
Well-Known Member
Have a 70 Roadrunner (383). Has the Orange Mopar Electronic Ignition Control Module mounted on the firewall. Have a fairly new Tic-Toc-Tac (2 years old) that I purchased from (do not want to say at this point), anyway it stopped working last fall and this past week I decided to try see what the problem is. Tested the voltage coming out of the negative side of the coil (where the tac is connected to) and I get 2.9 volts at idle (get 6-7 volts on the positive side). Contacted the place I got the Tac (assume it has the electronic circuit board in it) from told them what voltage reading I am getting and they told me that the tac needs at least 6 volts to work properly, asked if the car had the Orange Mopar Ignition Module and I replied yes it did and they said owners have been having a lot of problems with those modules putting out out voltage...so I do not know how old the one is that was currently on the car (car was restored approx 14 years ago) so I ordered a new one and installed it....also replaced the coil while I was at it. Well I am still getting the same voltage readings.
So can anyone tell me what the voltage is supposed to be coming out of each side of the coil at idle? Nothing in the shop manual about that.
Also was wondering is there a way to that I can test the Tac?
Thanks
So can anyone tell me what the voltage is supposed to be coming out of each side of the coil at idle? Nothing in the shop manual about that.
Also was wondering is there a way to that I can test the Tac?
Thanks