voltage

I went to a local dealer yesterday to buy a Certified 2012 Genesis 5.0 with 38,000 miles on it. On the test drive, I noticed the check engine light. They said it was nothing and were going to bring it to the service department to have it checked out. I left. They called me and told me just...

hey guys, so i noticed something rather bizarre today while testing this car. 2012 genesis sedan 4.6. the car has been in my garage being worked on, only stated and idled a few minutes a day to keep the battery topped off. today i acutally went and took it for a drive around the block. so...

Has anyone ever used one of these? Does it do anything at all? They are cheap and looks easy to install, but it sounds like snake oil or one of those $69 perfoermance chips. http://www.ebay.com/itm/170700743637?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Need to tap it into the output voltage lead for the TPS w/a wire from my Zex kit. Where am I tapping into? Photos would be great. For a 3.8L