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I have installed an L83 in a 1988 Silverado. The in-tank fuel pump is from a TPI engine and then a Corvette -00 fuel pressure regulator keeps the right pressure to the high pressure fuel pump.
I am...

Thanks,
But how do I know that something happen when I do it?
Should I press all three buttons?

I have installed a 6L80 from a 2010 Camaro in a 1988 Silverado, with an L83 engine. The TCM software is from a 2018 Silverado. When checking in VCM Scanner, I haven?t got the trans fast learn button,...

I have installed a 2019 L83 engine, mated to a 2010 6L80 transmission in my 1988 Silverado. Most things work, even if the TCM including the software is way older that the engine ECM. However, the...

Hello
I have seen previous threads with this question, but don't understand still

How can I see the cam retard offset with the HPtuners Scanner or Suite?
I need to adjust it to be zero, on the...