Just got a G8 dropped for a camshaft install. Previous the owner installed a yank 3200 stall converter. The car has 120,000miles on it and has a Camaro pan and filter installed at time of the converter install. Owner claims it was custom tuned by diablosport. The car currently exhibits alot of lag and slippage while driving enthusiastically. It also has these codes present; P0842, P0872, P0877, P0989. Before I install the camshaft I would like to know what I should do about the codes in the trans. I don't like upgrading cars if there are already issues present. Any thoughts would be greatly appreciated.
G8 GT with a list of Codes
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NEW!!!
I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.
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