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Holley Pro-jection questions- closed-loop circuit

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Old Feb 19, 2012 | 03:06 PM
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SCCAjunkie's Avatar
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From: Boyertown, PA
Car: 84 Z28
Engine: 91 L98 long block with Pro-jection
Transmission: T5
Axle/Gears: 91 10bolt w/ 3.42s and T2R
Holley Pro-jection questions- closed-loop circuit

Has anyone added the closed-loop circuit to their Holley Pro-jection system? If so, what kind of improvements did you see?

Also, most importantly, can I make my own kit? Is it just a plastic Molex-style connector? Is it a 1, 3, or 4 wire sensor? Is the sensor standard? Does anyone know the pin-outs on the connector?

Sorry, but I'm cheap, and I have several O2 sensors from other projects I was hoping I could utilize.

Thanks for any help!
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