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4-wire O2 sensor wiring?
Posted: Wed Apr 06, 2005 7:31 pm
by BAC5.2
How do I wire a 4-wire O2 sensor?
I spoke breifly with Vikash about it earlier and he said that I had to solder something to the heated ground.
Anyone got ideas?
Posted: Wed Apr 06, 2005 7:34 pm
by vrg3
Posted: Wed Apr 06, 2005 8:04 pm
by tris91ricer
Where might one come up with a 4wire o2 sensor?
Posted: Wed Apr 06, 2005 8:06 pm
by vrg3
Most newer cars use them. You can buy them from any respectable auto parts store.
OxygenSensors.com seems to have good prices.
I pulled mine off a practically new Korean car in a junkyard.
Posted: Wed Apr 06, 2005 8:15 pm
by tris91ricer
A daewoo, or a kia? *giggle*
Posted: Wed Apr 06, 2005 8:16 pm
by vrg3
I forget. It might even have been a Hyundai. It had two sensors easily accessed right at the front of the engine bay, so I grabbed both.
Posted: Wed Apr 06, 2005 8:33 pm
by tris91ricer
Hyundai was my thought as soon as I hit submit..
If I don't wanna order one online.. where might they be found? Tristan's pretty fond of paying cash.
Posted: Wed Apr 06, 2005 11:37 pm
by vrg3
A new one? Any auto parts store.
A used one? Any auto parts recycler.
Pretty much any oxygen sensor with 4 wires will do.
Posted: Thu Apr 07, 2005 3:20 am
by stipro
Maybe a simple diaghram would help with the correct wiring procedure. Some of us work better via visual aids.
Vikash? Josh?
EDIT: Never mind, this is about as straight forward as it gets. Duh
Legacy777 wrote:Ok, here's what the wires are & what you connect what to what.
OEM O2 sensor wires
Black = Heater Ground
Red = Heater 12v+
White = O2 Sensor
Walker Generic 4-wire O2 sensor wires
Blue = O2 Sensor
White = Sensor Ground
Black = Heater Ground
Black = Heater 12v+
Since the heater is not polarity dependent, it doesn't matter which black wire you use at ground and 12v+.
When you hook things up
Hook OEM white wire to Walker blue wire
Hook OEM red wire to one of the Walker black wires
Hook OEM black wire to Walker's white & other black wire.
questions?
Posted: Thu Apr 07, 2005 4:28 am
by BAC5.2
I got mine from Advance. I asked for the sensor for a 99 Acura CL V6, and up came 2 several hundred dollar sensors, and one Bosch Universal 4-wire sensor.
$70 bucks later and I got it. It looks different though, but whatever. I'm about to go make my wiring harness.
Posted: Fri Apr 08, 2005 8:44 am
by BAC5.2
Well, I just made a completely custom, plug and play, foolproof harness.
Took a bit of time because I was watching a movie at the time, but it came out OK. Now i'll find out tomorrow if it works!
I used a Bosch Universal bit.
The sensor portion looks completely different, but it should be OK. It's still a 12v sensor.
Posted: Fri Apr 08, 2005 1:01 pm
by legacy92ej22t
Sweet! I hope it works.
Posted: Fri Apr 08, 2005 2:42 pm
by BAC5.2
Thanks! I'm gonna swap my ecu too, just to be sure.
Posted: Tue Apr 12, 2005 10:50 pm
by Tleg93
Custom harness? Care to upload a pic of your setup?
Posted: Wed Apr 13, 2005 8:15 am
by BAC5.2
Oh, it didn't work. Car ran sickeningly rich and wouldn't idle.
I took it out after the car ran for 10 seconds, and it was STRAIGHT black.
I'm gonna take it back to advance and just get one from a WRX which has a 4 wire sensor that looks similar to ours.