Installing the 0411 PCM

[Chevy 97]

I am going to finally swap out the black box out of my 97 Chevy and put in a 0411 PCM. Starting on it on Sunday, Have to use the truck tomorrow. I am always nervous when you do something for the first time. Shouldn't be that hard. The nervous part is hooking up the EFI Live to get it tuned so it will run again.

 

[94Sierra4x4]

Let us know how it goes!

 

[sewlow]

Don't know what info you have, but I'll pass this along. Pretty good info, which you can never have enough of!

http://www.gmtruckcentral.com/articles/12200411.html

Haven't done this (yet) so I'm gonna be following along, too!

 

[Whipped96]

Sub'ed, need to do mine also.

 

[Chevy 97]

Already belong to GM truck central, I got the pin out sheet from Lextec, Should be straight forward. Will be marking all wires and taking pictures.

 

[Lextech]

Will be marking all wires and taking pictures.

You don't need to mark any wires. Just remove 1 wire at a time from the old connectors and install that wire into its new spot in the 80 pin connectors. ONLY DO ONE WIRE AT A TIME.

Jeff

 

[Chevy 97]

So far I have three connectors done. Pretty easy.

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Finished swapping the wires.

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[Chevy 97]

I am having issues with getting the wire connectors off the dash bezel. What a pain in the ass.. I have to run the wires to the computer from the neutral safety switch. Not much room to work with underneath.

 

[Chevy 97]

Finally got the speedo out so I could get to the wiring harness. I taped into the wires for the transmission neutral safety switch.

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I had to drill another hole in the firewall. Did not have grommets. I used heat shrink around the wire then silicone the hole shut.

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[Chevy 97]

I put wire loom under the dash to clean up the bare wires. Still need to do something with the wires by the PCM waiting till it is running.

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