Heated 02's need wirring help
Thread Starter
Burning Brakes
Joined: May 2009
Posts: 1,014
Likes: 7
From: Ft Wayne IN
Heated 02's need wirring help
OK so I reed all the how to threads but I really suck when it comes to wiring. I have heard about going to a fan wire and a smog pump wire. I have a 92 and all the places I check for 12v it's either always hot or only reading in millivolts? Can someone who's done this give me specifics on the wire to look for and location, it would be much appreciated. Thanks!
P.S. Is tapping into the fuse panel an option? I see they sell plug-in connectors to add an extra fused source without any splicing.
P.S. Is tapping into the fuse panel an option? I see they sell plug-in connectors to add an extra fused source without any splicing.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
First off are you sure you NEED a heated O2 sensor?? You could simply try the old O2 sensor and see if the ECM goes into and stays in closed loop at idle.
If so, what is the power requirement of the one you intend to install?
I would install a relay & fuse that taps into the battery power and use any switched source of power to energize the relay which then would apply power to the O2 sensor.
If so, what is the power requirement of the one you intend to install?
I would install a relay & fuse that taps into the battery power and use any switched source of power to energize the relay which then would apply power to the O2 sensor.
Pro
Joined: Nov 2004
Posts: 641
Likes: 3
From: Long Island NY
http://www.casperselectronics.com/st...roducts_id=698
Casper electronics kit for conversion. Don't need to use a relay. Very low amp draw. I did wire in a 5 amp fuse. You can tap off the switched power that feeds a relay. Looks factory when installed.
Casper electronics kit for conversion. Don't need to use a relay. Very low amp draw. I did wire in a 5 amp fuse. You can tap off the switched power that feeds a relay. Looks factory when installed.
Last edited by artvette; May 20, 2013 at 09:04 PM.
Pro
Joined: May 2008
Posts: 670
Likes: 56
Find the AIR pump under the hood, drivers side, directly under the headlight. The connector going into it has a switched power, it's the red (orange?) wire with a black stripe. You can test it to make sure but that is where I found switched power for my heated 02's on my 93. Hope that helps.
