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Th350 with PCM

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Old Jan 15, 2014 | 08:59 PM
  #1  
heshufa's Avatar
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Default Th350 with PCM

I have a L59 5.3 still running EFI from a 2002 Tahoe in a 73 Nova. When I bought the engine, the guys flashed the PCM for the TH350 non electronic tranny and removed the wires in the harness that went to the old 4L60e.

Would I use something such as HP Tuner to flash the PCM and essentially flip that switch, for lack of the correct terminology, back on if I wanted to go back to the 4L60e?

What keywords should I be searching for when trying to find this type of information related to the PCM controlling an electronic tranny versus cutting that logic off to coexist with a non electronic tranny?

I'm just trying to understand what they did to make it work and what the process would be to undo what they did.

Thanks,

Hesh
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Old Jan 16, 2014 | 11:09 AM
  #2  
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The process would be to have them,or somebody, reflash the PCM with a 4L60E calibration.
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Old Jan 16, 2014 | 11:09 PM
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We can flash it back to a 4l60e if your wanting to go back to a 4l60e.
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