Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
Subject:Re: Electrical question (Coil terminals)
From:Mike S
Date:Mon, 12 Oct 2009 15:07:55 -0400

At 02:32 PM 10/12/2009, Don Hanson wrote...
>Hi all, I am looking to find the Neg pole terminal on my coil...  One
>terminal goes on to the hall sensor or
>the MAF box or somewhere...Two go over to the ECU or at least into the
>harness to the ECU.

With the ignition on (car not running), measure the voltage between the
two (meter ground lead to one, voltage lead to the other), then swap
the meter leads and measure again. The + will be the more positive of
the two, so you'll should get a positive reading one way, a negative
reading the other way. When the meter is connected
meter-ground-to-coil-negative and meter-voltage-to-coil-positive, you
should measure a positive voltage.