My truck has no choke. and i wanted to know why. I opened up the emissions control box located in the passenger side kick panel, a black box, and ether someone did it on purpose or it came from factory, but they cut 4 resistors form the circuit board. If you look closely you can see they are cut on the lower leading edge of the board. now if anyone has a this box and is willing to take it apart, two 10mm and a Philips and you can get to the circuit board, snap a picture of it. I doubt any came cut from factory. and if you happen to not be using yours. I need one, so just let me know. they way the truck is set up is, its bypassing the emissions ecu. but it still passed smog