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 Oxygen Sensor
#762517
11/02/06 08:39 PM
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Joined: Sep 2006
Posts: 11
OP
Need a Spot
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Does anybody know where the oxygen sensor connection is on a 1990 3.0 Montero,finding the sensor itself was easy but finding to where it plugs in at is driving me crazy.
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Re: Oxygen Sensor
[Re: sparky101]
#762518
11/02/06 09:32 PM
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Joined: Feb 2001
Posts: 1,992
Body Damage is Cool
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Does anybody know where the oxygen sensor connection is on a 1990 3.0 Montero,finding the sensor itself was easy but finding to where it plugs in at is driving me crazy. I found this, I am not certain and any of the guys withthe 3.0 can say if it is right but this is as per the repair manual: [img] [img:http://i79.imagethrust.com/t/460149/wiringdiagramo2sensor.jpg][/img]
88 red Montero with the Dakar Special Edition decals, 438,000 miles (As of 7/23/2012) some occational blue puffing but still strong and counting!!! I am going ppsshhh (turbo), Stay tuned =) ...
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Re: Oxygen Sensor
[Re: JAVYPRO]
#762519
11/02/06 09:49 PM
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Joined: Aug 2004
Posts: 644
Rock Warrior
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The manual shows it at the firewall towards the drivers side.
Two wire connector. one white and one black wires.
Over the hill but still climbing.
88 Montero 2.6L auto, manual hubs, cooling fan conversion gps,recurved distributor,LSD Diff.
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Re: Oxygen Sensor
[Re: JAVYPRO]
#762520
11/02/06 10:05 PM
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Joined: Sep 2006
Posts: 11
OP
Need a Spot
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I can not make out the picture very well but thanks anyway and on the sensor itself ther are 4 wires going into the connector so I am still searching.
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 Re: Oxygen Sensor
[Re: sparky101]
#762521
11/02/06 10:41 PM
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Joined: Dec 2000
Posts: 6,896
Trail Leader
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The wire goes over the tranny and plugs in on the driver side. One of the 2 plugs right by the t-case roll stop mount. Just above frame height.
I just want to tell you both good luck, and we're all counting on you.
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Re: Oxygen Sensor
[Re: sparkem]
#762522
11/03/06 07:34 AM
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Joined: Oct 2004
Posts: 6,332
Trail Leader
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The wire goes over the tranny and plugs in on the driver side. One of the 2 plugs right by the t-case roll stop mount. Just above frame height. That's where mine is too. Sparky must have a Kalifornia model like mine. HO2S instead of O2. I haven't seen any Federal monteros, so I don't know for sure.
1990 Montero RS (In pieces... for now)
KG6VNX
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Re: Oxygen Sensor
[Re: 52degrees]
#762523
11/03/06 12:36 PM
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Joined: Feb 2004
Posts: 10,238
Web Wheeler
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AFAIK, all of the '89s route the o2 sensor over the transmission to the driver side frame rail mount near the t-case.... a harness runs from the frame rail connection forward, then up and into the engine bay where it joins the run into the main harness. I suppose it's done that way to keep the harness away from high heat.
Frank
'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum
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Re: Oxygen Sensor
[Re: FrankR]
#762524
11/03/06 03:33 PM
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Joined: Oct 2004
Posts: 6,332
Trail Leader
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I meant the part about 4 wires instead of 2. Does yours have a heated O2 sensor?
1990 Montero RS (In pieces... for now)
KG6VNX
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Re: Oxygen Sensor
[Re: 52degrees]
#762525
11/04/06 01:29 AM
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Joined: Feb 2004
Posts: 10,238
Web Wheeler
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Oh - sorry..... Mine is a 2-wire - non-heated... narrow-band.
Frank
'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum
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