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E9x M3 Tach Input

Posted: Mon Aug 25, 2014 12:48 pm
by Andre' Surles
E9x M3: Tach input information gathered by Douglas Brown

http://www.e90post.com/forums/showpost.php?p=847018&postcount=11

Here is the relevant picture:

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To make the electrical connection, I ordered the following OBD II connector ($8.00 with shipping):

http://www.karlssonrobotics.com/cart/obd-ii-connector/?gclid=CMn_5pyRrMACFWho7AodpUQAvg

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