Conversions & Swaps LSX Engines in Non-LSX Vehicles
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5v reference question

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Old 11-04-2010, 11:03 AM
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Default 5v reference question

okay guys, i'm finishing up my harness but have a few questions (i'm only working with the chiltons manual so its not that descriptive)

i'm using a 98 pcm but i'm sure the 99-02s are the same. i have a 98 ls1, and i'm getting ready to wire up the constants, keyed and ground sources. but i also have 2 5v reference wires that do not go to anything (according to my 98 pinout). now what should i do with them? are they the 5v reference supplies for engine senors, or are they 5v references for stuff like a/c or egr crap? (pin 65 and 67 on blue connector - 98 pcm)

thanks for the help
Old 11-04-2010, 05:09 PM
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If you are not doing a full emmission swap, then you can delete them. 65 is the 5v reference for the EGR valve, and 67 is the 5v feed for the fuel tank pressure sensor.



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