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BeckyD @ James Martin Chevy


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Old 12-15-2020, 11:53 AM   #1
JSH


 
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Drives: '20 ZLE
Join Date: Jun 2020
Location: Mile High
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'20 1LE A10 2nd gear launch

Please provide some details on how to adjust the TCM to allow for a launch in 2nd gear (in manual mode).
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2020 ZL1LE A10.
LME LT4 390 short block, CID Heads, Kong E2650, FBO.
15" conversion, Nitto 555Rii or MT ET Street R or Toyo Proxes RR.
100 octane: 1045hp/1055tq.
100 octane + Alky MAF Meth (1) 10+:
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Old 12-16-2020, 11:08 AM   #2
Jamesg89
 
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Drives: 2019 2SS & 1998 SS
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Location: Indiana
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Can you even adjust the tune on the '20 TCMs? I thought after '19 they couldn't unlock them anymore.

I also doubt GM employees will tell you how to adjust anything in the tune of the car.
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Old 12-16-2020, 03:40 PM   #3
JSH


 
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Drives: '20 ZLE
Join Date: Jun 2020
Location: Mile High
Posts: 4,147
Yea, I just discovered the T93 TCM is locked, and I'm assuming my '20 has one. I'll bet the Russians who hacked the US Treasury could unlock it though.
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2020 ZL1LE A10.
LME LT4 390 short block, CID Heads, Kong E2650, FBO.
15" conversion, Nitto 555Rii or MT ET Street R or Toyo Proxes RR.
100 octane: 1045hp/1055tq.
100 octane + Alky MAF Meth (1) 10+:
JSH is offline   Reply With Quote
 
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