12200411 PCM swap for 1996 to 2000 GMT400 trucks

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moremudd

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I wish I was not so late to the Party .
I have a 1998 silverado 4 wheel drive , 5.7 liter , manual 5 speed that I would like to update to the 411 pcm .
Could anyone Please share a pin placement diagram and a base tune . I'm unsure about the diagrams that google comes up with .
Thank you , [email protected]
 

Sickc4

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Since we have a new 96 up Vortec subsection, I thought I would make a new post.

The 12200411 PCM can be installed into the 96 to 2000 GMT400 trucks simply by repining the PCM connector terminals. The wiring is slightly different between the 96, 97, and 98 to 2000 trucks. The 0411 PCM has a much faster processor than the Black Box PCM and has dual timing tables. There is also more support from the tuning software companies for the 0411. EFILive and HPTuners both offer "Custom Operating Systems" for the 0411 to support boost and or nitrous. The swap can be completed in about 2 1/2 hrs and is fairly easy to do. If anyone is interested in the swap just PM me your e-mail address and I will send you a copy. I will not post the files to the web.

Jeff
 

Sickc4

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Since we have a new 96 up Vortec subsection, I thought I would make a new post.

The 12200411 PCM can be installed into the 96 to 2000 GMT400 trucks simply by repining the PCM connector terminals. The wiring is slightly different between the 96, 97, and 98 to 2000 trucks. The 0411 PCM has a much faster processor than the Black Box PCM and has dual timing tables. There is also more support from the tuning software companies for the 0411. EFILive and HPTuners both offer "Custom Operating Systems" for the 0411 to support boost and or nitrous. The swap can be completed in about 2 1/2 hrs and is fairly easy to do. If anyone is interested in the swap just PM me your e-mail address and I will send you a copy. I will not post the files to the web.

Jeff
 

Sickc4

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Troy, Missouri
Since we have a new 96 up Vortec subsection, I thought I would make a new post.

The 12200411 PCM can be installed into the 96 to 2000 GMT400 trucks simply by repining the PCM connector terminals. The wiring is slightly different between the 96, 97, and 98 to 2000 trucks. The 0411 PCM has a much faster processor than the Black Box PCM and has dual timing tables. There is also more support from the tuning software companies for the 0411. EFILive and HPTuners both offer "Custom Operating Systems" for the 0411 to support boost and or nitrous. The swap can be completed in about 2 1/2 hrs and is fairly easy to do. If anyone is interested in the swap just PM me your e-mail address and I will send you a copy. I will not post the files to the web.​

Jeff
 

rigsboo

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I have a 5 speed and the pinout sheet is for a automatic...any one know ere the clutch l wire goes? Originally C3 15 or ehat am i supposed to do with the wire?
 

moremudd

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Hi rigsboo, where did you find a good pinout sheet ? Lextech seems to have dropped off the radar .
 

moremudd

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I have searched the internet for anyone sharing pin out information with no luck , just a bunch of stories about how great the swap is . I wish lextech could be reached . If my truck had a decent resale I would just dump it and buy a 2000 or newer and quite trying to make this one better .
 

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