Conversions & Swaps LSX Engines in Non-LSX Vehicles
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which pcm?

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Old 02-07-2011, 06:36 PM
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i bought a ls6 out of a 05 cts-v and need to know which pcm would be best to use with it? im new to ls thing so wanna make sure i get the right one. its going in a 70 chevy shortwide.
Old 02-08-2011, 07:06 AM
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You will need a 05 Vette pcm if you are going to go with fuel injection. Will cost you about $100!
Old 02-08-2011, 07:45 AM
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Originally Posted by 70shortwide
i bought a ls6 out of a 05 cts-v and need to know which pcm would be best to use with it? im new to ls thing so wanna make sure i get the right one. its going in a 70 chevy shortwide.
It depends on the type of throttle actuation you'll be using as some (2003+) do not have the IAC drivers.

I believe that an '05 OEM V (Serv. #12589462, Hdw. #12589161) ecm has the drivers and will work for either application. They are also found pretty common usage in 2003+ Yukons, Suburbans, and Savanna/Express vans.

Another Savanna/Express ecm, Serv. #12576106, Hdw. #12570558 also has the IAC drivers for a cable throttle.

The very common 12200411 ecm will also work in both applications.

There's a thread on here somewhere about converting dbw harnesses to cable configuration that has all the info you'll need.
Old 02-08-2011, 12:46 PM
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I should prolly specify that its just a short block. So can i use a 99 up camaro pcm and use that type of intake?
Old 02-08-2011, 07:28 PM
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Not to jack, but has anyone by chance compiled a list of which PCMs are compatible with which harnesses and what PCMs have what functions?



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