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Discussion Starter · #1 ·
I have an 08, bought it a few years ago bone stock. Didn't have any signs of tunes. Drives really well, as if it has a single tune possibly.

I had the pre dpf sensor line break, throwing code p2454. I attempted to put new lines on, the threads on the dpf were worn out. Put high temp gasket maker to make the seal. Engine light went away and it drove awesome.

Just bought an insight cts2 today and it's showing the p2454 code, yet nothing on my dash? I went into the dpf status and it shows as off. Should I assume that the truck is tuned and turned the dpf off?
 
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