OK Everyone, I'm hooking up an EFIE to our 2005 1500 4x4. My issue is this: I've checked all the wires on the O2 Sensors and have not found any wires that give me 12v. The readings I'm getting (even after driving it for 10-15 minutes to let it warm up to operating temp) is in this order of the plugs 1-4 on the adapter to the O2 sensor:
1) 2.61 constant,
2) .15 constant...thinking this is the ground,
3) 3.38 constant...o2 signal ground?,
4) 4.6 - 6.0 fluctuating...thinking this one is the signal + wire since it fluctuates.
The dealership mechanics told me they have no clue and I can't find a mechanic around where I live to help me out either. I am extremely confused on this and would love some help as soon as possible if anyone knows. I'm looking to find which wire is my 12v/Heater wire, Heater Ground, O2 Sig +, and O2 Sig Ground. I've also attached the dealer wiring diagram for a 2005 Ram 1500 4.7L although ours is a 5.7L. which is the same. Thanks in advance for all the help. I'm looking forward to finally getting this done.
1) 2.61 constant,
2) .15 constant...thinking this is the ground,
3) 3.38 constant...o2 signal ground?,
4) 4.6 - 6.0 fluctuating...thinking this one is the signal + wire since it fluctuates.
The dealership mechanics told me they have no clue and I can't find a mechanic around where I live to help me out either. I am extremely confused on this and would love some help as soon as possible if anyone knows. I'm looking to find which wire is my 12v/Heater wire, Heater Ground, O2 Sig +, and O2 Sig Ground. I've also attached the dealer wiring diagram for a 2005 Ram 1500 4.7L although ours is a 5.7L. which is the same. Thanks in advance for all the help. I'm looking forward to finally getting this done.