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autometer tach problem [Archive] - StangBangerz Forums

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foxtrot
02-18-2010, 07:18 PM
tach bounces around all over the place,any suggestions,I also replaced it with a new one still does the same thing???????

mustangrfast88
02-18-2010, 07:20 PM
sounds like possible a bad or loose ground or your tack signal wire aint make good contact at all times

foxtrot
02-21-2010, 10:51 PM
Ran all new wiring ,same thing also the tach output doesnt work on my 6al any other suggestions.

mustangrfast88
02-21-2010, 10:59 PM
been awhile since i have hooked a tack up but if the 6al tach signal aint working you should be able to wire it right to the coil

foxtrot
02-21-2010, 11:11 PM
Tried that and it wont work at all.

mustangrfast88
02-22-2010, 01:18 AM
where you located man, and it is only 4 wires correct, 1 wire to a ground, 1 wire to a light source, 1 to key power, 1 to the tack signal and it just dont sound right man to have 2 bad tachs

foxtrot
02-22-2010, 02:30 PM
4 wires correct,maybe my 6al is bad I dont know ,Im bout to throw it all in the shit pile.

mustangrfast88
02-22-2010, 05:09 PM
well cincy speed can test the 6al and i can hook the tack to my car and see if it works lol