Hey, i just installed the yellow jacket and all the checks work except the speedometer test (5 sec light, and 2 blinks work). I push the car and the lights dont blink. but if i start the car and push the car it blinks. When i tried to drive it the speedometer just stayed at 0. I checked the wiring and everything and seems correct, did i use the wrong wires or something? anybody got any ideas??

 

The Yellow Jacket comes with a pretty good manual.

http://www.modifry.com/products/yj/Yellow%...nstructions.pdf

Check & double check the color of the wires used.
(let someone else check it, you may not see the mistake you made anymore.. it happens!)
Check & double check the connections.
(if those calmp-on things don't work use a soldering iron)
Make absolutely sure you used the correct voltage.
Otherwise you may release the misterious blue smoke.

Succes.