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09-10-2024
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#1 |
 Join Date: Jan 2024
Location: Boston, MA
Posts: 179
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Is "shift" light in the ECM tune somewhere?
For a 94 is the stock shift light on the dash programmable in the ECM tune, or part of another module? I realize it isn't the best and I'll likely get something standalone down the road, but hey it's there so why not?
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1987: Z51 Coupe, Z51, 4+3, Yellow / Graphite 1994: ZR-1 #150, Admiral Blue / Black 2015: Z06 Coupe, Z07, M7, Arctic White / Red |
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09-10-2024
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#2 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 814
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Re: Is "shift" light in the ECM tune somewhere?
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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09-10-2024
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#3 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 814
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Re: Is "shift" light in the ECM tune somewhere?
Interestingly GM turned it off on all the later service calibrations. Not sure why.
Sent from my iPhone using ZR-1 Net Registry
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Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
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09-10-2024
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#4 | |
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Join Date: Jan 2024
Location: Boston, MA
Posts: 179
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Re: Is "shift" light in the ECM tune somewhere?
Quote:
Ah! I thought maybe a previous owner had removed the bulb from my dash as I had not seen it yet. 
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09-10-2024
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#5 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 814
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Re: Is "shift" light in the ECM tune somewhere?
If you want the shift light to come on above 6375 rpm, you have to change the operating code to read the ROM address for Rpm/31.25 rather than RPM/25, which maxes at 255(d) or 6375.
Sent from my iPhone using ZR-1 Net Registry
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