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thank you for the information.
i dont know how to display those o2 sensors on the scanner, i can see where it says O2 but there;s no value like its not reading for some reason. i think my suv dont...

hello everyone
I need some help tuning my 2004 trailblazer 4.2
i spent a couple of days on it and its still has knock retard (KR) on stock timing it was pulling around 8 degrees until i got it to...

thanks, i found it!
now the only that's left is checking on the tune attached.

i just redownloaded it again! its not included with the VCM suite, i am using the MPVI2!

hello everyone!
I have a 2000 Silverado 5.3 bone stock, automatic, except a 100hp shot of nitrous and 2000 stall
I am new to hp tuners and I have the truck already tuned, but it was tuned before...