how to put autometer tach in 1990 24sx

ONLY for ADVANCED technical discussion about the 240sx!
allmotoref
Posts: 61
Joined: Mon Jun 30, 2008 8:17 am

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i have a 1990 240sx it has the stock ka24e i need help

what wire controls rpm signal


gumby74
Posts: 1442
Joined: Sun Jan 07, 2007 4:00 am

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According to my trusty Chilton's manual....yellow/red coming out of the ecm designated port#2.


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