I have a 2008 GMC that the original ECU ended up getting corroded and I replaced with a ECU of the same number. The original ECU would get the truck running but it would idle extremely high and some of the pins were broke off. Now I have the 2nd ECU in and I needed to turn VATS off (which I did) so that it would crank and the fuel pump would run but now there is no spark. Is there something else I need to turn off in order for it to get spark?