How can you find out if your OS/Tune is set for an automatic versus manual? I started out with a 3bar SD open loop OS and a turbo 350. That trans died yesterday (boost spiked to just under 30psi whereas the normal is only 21) and I have a 4L80E ready to go in. Just wondering if there's a way to tell before hand if I need a segment swap.
That file already has the 4L80e parameters in there, so it's really to go as far as I see.
If you opened the transmission tab and there was only 2 sections and it already said "manual" in the drop down it would require a segment swap.
It's likely you will need to make sure the DTC's for the transmission are active so you can trouble shoot issues if need be. Best to compare with a stock tune to see what the correct setting are.
Thanks! I'll do that.
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Originally Posted by 5FDP