Help w/ odb jumper harness wireing. just 2 wires left

Scott82 · #1 03-30-2005, 06:58 PM

Ok i have scrapped and dug around and found out the answer to a couple of my questions about my o2 wiring. My delima is the o2 heater wires. There are two coming out of the o2 sensor but there is only one heater wire in my jumper harness. Am i supposed to run the 2 wires from the o2 sensor to the 1 wire in the jumper harness or i have a power wire also on the jumperharness that i could run two. There are 12 wires to choose from in my jumper harness but i am only having to use 8 of them, some are for obd2 conversions. Has anyone had this problem before. Somebody please help out. Thanks Scott

EF You · #2 03-30-2005, 07:04 PM

one of the heater wires is a positive feed, the other should be a switched ground. i think.

Scott82 · #3 03-30-2005, 07:43 PM

Well, I already have a ground fron the o2. There is a ground, signal wire, and 2 heater wires and they are both the same color.

Scott82 · #4 03-30-2005, 09:38 PM

Hhhheeeeelllpppp!!!!!

Scott82 · #5 03-31-2005, 12:48 AM

ok i am getting soemwhere w/ my research. Ok one of the heater wires need to go to the heater control and the other goes to a power source on my jumper harness. But my question now is there a way to tell whick white wire goes to which? or is it just try one and if it dosnt' work try the other, or am i on the completly wrong path. This is about to drive me crazy.

jeef · #6 03-31-2005, 09:20 AM

are the whites on the harness or o2, if they are on the o2 then it shouldn't matter which is which, its it on the harness you may need to break out a multimeter.

btw your whole ordeal makes my extremly glad I bought my harness from where I did.

Scott82 · #7 03-31-2005, 10:01 AM

Well its not that big a ordeal but it is confusing when you have two wires the same color, i have figures out i run one white wire to the heater control and the other white goes to a power source but i don't know how to tell which wire goes where.

jeef · #8 03-31-2005, 10:10 AM

the white ones are on the 02 right?

Scott82 · #9 03-31-2005, 10:21 AM

yea the two white are on the on. On the jumper harness my heater control is blue and my power source is red. Do you know how to tell which white wire to run to the differ colors on the harness?

Scott82 · #10 03-31-2005, 10:22 AM

on the o2 not on the on, my bad

jeef · #11 03-31-2005, 10:27 AM

In that case it doesn't matter... they can go to either. Just so there is a Positive side and a negative side.

Scott82 · #12 03-31-2005, 10:29 AM

Cool, that has my wireing done now once i go hook up those two wires, i just needed to make sure i was going to do it right before i hooked them up last night, so that is my first project today. Thanks for the help man and i am off to get a vtec crx runnin!!!!!!

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