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Need help psi ls1 drive by cable harness .using ls2 alternator

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Old 07-05-2013, 08:50 PM
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Default Need help psi ls1 drive by cable harness .using ls2 alternator

Like title says harness is setup for ls1 4 pin alternator plug but like most psi harness only uses one wire. My prob is I got a good deal on on 06 ls2 gto front ,accessories and the ls2 alternator plug has a 2 pin plug can any one tell me how to wire it. Psi has been great to deal with even overnighted me the pins and ls2 alternator plug for no cost and I has got the harness used off a me member on this site.but I know john over at psi has a buisness to run so rather not bother him with this.thanks again psi
Old 07-06-2013, 02:03 AM
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https://ls1tech.com/forums/generatio...lternator.html

No idea if it will help, but check out this link in the gen4 external forum
Old 07-07-2013, 06:34 AM
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Bump please any one run into thia
Old 07-07-2013, 07:45 AM
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Just shoot Jon a PM or email for the correct answer and usually a quick answer but im not sure about today.
Old 08-17-2017, 03:46 PM
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I have the same exact issue! What was your solution?
Old 08-17-2017, 05:20 PM
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I believe the 2 pin alternators are PWM controlled so they need to be connected to the ECU...

Andrew
Old 08-17-2017, 10:17 PM
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You don't need the ecu to control the alt with the 2 pin connector. Just connect ign to pin #1 on the connector. Steve



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