Heated O2 Sensor Power Requirements?
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,218
Likes: 0
From: Rolla Mo
Heated O2 Sensor Power Requirements?
Those of you that have upgraded to the three wire O2 from the one wire O2..How did you wire the power circuit and where did you obtain the power? What is therrent draw for a Heated O2 sensor?
Thanks,
Doug
Thanks,
Doug
Safety Car
Joined: Sep 2003
Posts: 3,599
Likes: 24
From: Orange County NY
St. Jude Donor '10-'11-'12-'13
i think i read on the forum that some have tapped into the wiper motor harness for a 12v switched source. i will be trying this as i no longer have a wiper motor (won't fit with my tall valve covers).
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,218
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From: Rolla Mo
Originally Posted by scorp508
You can get a SPST relay and tap into the fuel pump relay for your signal and then hardwire a line to the junction block behind the battery.
Thanks,
Doug
Burning Brakes
Joined: Jun 2004
Posts: 752
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From: richardson tx
iv located the 1-4 relay right behind the batt. the wire colors are green, green white strip, blue, pink with black strip. the o2 has 3 white white and black. which wires did you connect. thanks
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Pro
Joined: May 2003
Posts: 682
Likes: 1
From: Annapolis MD
Originally Posted by fsr402
I don't have any Cats or EGR grap so I hooked into the main power wire that went into the relay for the electric AIR pump.
please email me at Mad-Mic@comcast.net
Thanks!
Thread Starter
Burning Brakes
Joined: Feb 2003
Posts: 1,218
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From: Rolla Mo
Thanks Everybody!!!!!!
I got it done today, I ran a relay off the fan input and took 12V fused @ 5amp from behind the battery for the O2 power. There was a nice ground for the relay in in the front where the headlights drop down. And I used the ground Scorp suggested behind the oil cooler. I just tapped it into another wire there as I couldn't get to the bolt my hands are too big. I cut off the old connector from my old O2 sensor and soldered it onto the end of the O2 Signal wire. When it was all said and done, it looks really good too! I drille a hole into the rediator shroud to screw the relay on and it looks like it belongs there!
Thanks again to all for the help!
Doug
Thanks again to all for the help!
Doug
Drifting
Joined: Feb 2004
Posts: 1,485
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From: Champaign, IL
St. Jude Donor '05
Originally Posted by fsr402
I don't have any Cats or EGR grap so I hooked into the main power wire that went into the relay for the electric AIR pump.
this is exactly what I did
Le Mans Master
Joined: Jan 2002
Posts: 5,556
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From: Jenison MI
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06
Originally Posted by Mad-Mic
