 Tach signal - not making it to dash...., where do i look? |
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| Aaron Cox |
 Jun 9 2006, 09:38 PM
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Professional Lawn Dart  Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California  |
allrighty...
tach worked fantastic before paint.... now everything is reassembled and the tach doesnt work.... mallory CDI box with modded tach (see CDI tach mod) worked flawlessly, and a late gauge would work fine too... now, early modded tach doesnt work, nor does a late model tach. i checked gauge connections, and i checked engine bay connection. the blk/purp wire connects to tach output of CDI box, and is plugged in at gauge... where should i be looking??? no signal is making it to the tach... (IMG:style_emoticons/default/sad.gif) |
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| Dave_Darling |
Jun 9 2006, 09:54 PM
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Follow the wire. It goes to the relay board, then through the board into the main wiring harness. From there it goes to the tach.
Check to make sure the T-12 and T-14 plugs are plugged in correctly and fully seated on the relay board. Make sure the black/purple wire is in the right spots in both connectors. Make sure the connections on the relay board are OK, and that there is connectivity from the one pin to the other.... --DD |
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Posts in this topic
Aaron Cox Tach signal - not making it to dash.... Jun 9 2006, 09:38 PM
DNHunt Get a volt meter and check continuity of the black... Jun 9 2006, 09:53 PM Aaron Cox i believe the signal out of the box is a 12v squar... Jun 9 2006, 10:19 PM
Dr Evil Dude, you dont need an O scope, just disconnect th... Jun 9 2006, 10:42 PM |
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