I Have a 2012 Hyundai Santa Fe se v6 awd and have a problem, i hooked up a starter kill system "excalibur au-si-n" when i first purchased it in the end of December and shortly after that about 3 weeks i got a check engine light with a code p200 while it was in valet. Anyone have any idea why this happened? Hyundai replaced the intake manifold and said it should be fine. It may not have anything to do with the starter kill but i want to make sure because it is happening again so i have to go back to New York and drop it off again for repairs. Car only has around 7000 miles on it.

I want to relocate the system any ideas? I want to find the neutral safety switch maybe i could interrupt the starter at that point if there is one. And maybe i will put a switch on the shift lock. I can't seem to find the wire colors for those things if anyone can help that would be great.
Thank you
P.S. i used to do car alarms for a living but that was 7 years ago.