Good morning,

I'm in the middle of swapping a stock '07 Dodge Cummins from a 2500 into a 1970 F250, and have been working on thinning/modifying the wire harness. I'm trying to eliminate the SKIM module, and I'm not having much luck so far. Here's what I've done:

- Download stock tune using Flashscan V3 & V8 Scan & Tune
- Edit file to Disable E6510 Vehicle Anti Theft in V7.5
- Flash modified stock tune using V8
- Unplug SKIM module

This resulted in a no start condition with the vehicle security light on. Started immediately after plugging the SKIM module back in. After reading a ton online, it sounded like I needed to eliminate the SKIM module first, so...next attempt:

- Did everything the same, but unplugged the SKIM module before re-flashing

Still a no start condition after the flash, security light on. When I download the tune from the ECM it still shows the VAT as disabled.

What am I doing wrong here? Are there anti-theft settings elsewhere? In old threads I've seen that people were using C&C tunes in order to get around anti-theft. Is this required, or was that before EFI Live added the ability to disable it?

Any help is greatly appreciated!