I Have a 02 Dodge ram with the 5.9L engine and i purchased a O2 simulator because i wanted to remove the cats. what i need to know is which wire is the Signal, 12 volt, and the ground wire on the oxygen sensor. If anyone has any idea please share some info.
The wires should be color coated. Usually if it is a 4 wire o2 there are two white wires and two black wires and the blacks are both grounds. Same should go with the 2 wire o2 the black is usually the ground and the wite is the 12v wire.
