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The 5th plug is a 2 pin plug that is 1 wire in a big loop. It is not usually used on retrofit jobs. I really don't know what it's there for anyway--It is just a big loop of wire. Your 5 plug PCM is a 96 or 97. To the BEST of my knowledge 96 and 97 Black Box Vortec PCMs are not supported by EFILive.
Jeff
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The 5th connector that i have is a 5 pin and like i said i am not using it. Do you know if the 0411PCM can be used on the painless harness i have? Painless shows two part numbers of PCMs that go with that harness but niether is the 0411.
I am hoping Blacky has an idea how i can get into this one, the truck runns good in open loop so if i could get it to run that way all the time i would be happy.
Terry
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I am at a loss on the 5 pin unused connector. You would need to know exactly what year PCM it is and if Painless uses the factory wire colors otherwise the 0411 swap might be difficult. I thought I was up to speed on the Black PCMs---Guess Not.
Jeff
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EFILive doesnt support 96-97 Vortec Black Box PCMs, do a 0411 swap and you can do a LOT more with the PCM.
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I am looking into 0411 PCM, do you guys know were to get the connectors?
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Also is there any sensors that don't play well with that PCM? or any other needed changes besides tuning?
Thanks for your help.
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EFIConnection has the 80 pin connectors you will need for the swap. If the sensors are the same as the pickup trucks then everything will work fine.
Jeff
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I was looking at my 97 PCM out in the garage that I got from a guy who was parting a 97 K1500, and it is a 4 connector.... Has the cut off pigtails still on it. Will pull the PCM PN and see what it is....
Or just take it apart...
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As for connectors, if you are keeping low buck, head off to local boneyards (car-part.com) and ask them for them with the PCM if you are getting one too. I find them very inexpensive that way. I picked up 2 for my 3800 for $10 in a place in Indiana, both shipped to door was only like $25 total out of pocket. Just ask them to find you a pair or 2 of connectors too.
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I found a 0411 with plug for $75, haven't seen it yet. its been over a week, hope its coming.