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Thread: How split crank/cam sensors, piggybacking LS.

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    Default How split crank/cam sensors, piggybacking LS.

    I want to piggy back a Holley Terminator on my 2000 Trans Am. I want to keep the cluster and the rest of the car functioning, but have the Holley control the fueling/spark. I know this has been done. Heck I've seen it done on the newer E38 and E40 PCMs. I'm guessing the guys who have figured it out don't talk about how they did it, which I completely understand. The biggest question I have is how you split the crank/cam sensors, so the stock PCM and the Holley see them. I'm not so much worried about splitting the cam sensor because I don't see why the stock PCM needs to see it. It just needs to see RPM. I've listened to several podcasts from people way smarter than me who talk about needing a resistor to get the crank sensor to work correctly, but don't understand why this is needed.
    Last edited by Jay@HAP; 06-03-2019 at 09:52 AM.

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