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Old 12-10-2011, 02:35 PM   #1 (permalink)
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little help

ok I found everything I need but the VSS wire. Do i need to tap in to the 7A 9A or 10A. My gut says the 9A I just need someone to back that up.


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Old 12-10-2011, 03:04 PM   #2 (permalink)
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Well 9A looks like the conditioned signal you want, 7A looks grounded and 10A like gibberish to anything but the speedo.
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Old 12-11-2011, 04:28 PM   #3 (permalink)
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ok now what I pulled the injector and i am getting 12v on both sides of the plug? here are the drawings on the car



continues over to



where do i tap into the injector now?

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Old 12-13-2011, 09:26 PM   #4 (permalink)
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To me, it looks like pin 1 on injector1(from the ECM) is the wire you are looking for for your injector signal.

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Old 12-14-2011, 05:12 AM   #5 (permalink)
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I think you want the blue(?) wire that is fourth from the top where it crosses over from one image to the other.
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Old 12-14-2011, 10:04 AM   #6 (permalink)
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Yea I was thinking like you two its the (B) that heads over to the ECM. But while looking at it I noticed the (B) only goes to two injectors then to the ECM. Then the (B-R) goes from the other injectors into the OBD test port. So I was guessing that those are the ground signal wires that its looking for. Now my question is should I be able to spade my wire into the test port and then change the referance formula during calibration. Or should I just go and cut into the harness at injector 1 pin 1.

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