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 Re: Bosch O2 sensors=bad? True or false?
[Re: eleet]
#801056
03/29/07 06:54 PM
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Joined: Sep 2006
Posts: 981
Rock Warrior
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Yea, usually your gas mileage takes a big hike down and you can get a CEL. I know mine must have been replaced at some point or theoriginals are holding up well b/c I get exactly or better that Toyota advertises for mpg-16-17mpg.
1996 T100, Mickey Thomson Classics, Bridgestone Dueler AT 265/75/16, custom offroad KC's.
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Re: Bosch O2 sensors=bad? True or false?
[Re: CJMT100]
#801057
03/29/07 08:24 PM
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Joined: Feb 2005
Posts: 1,489
Body Damage is Cool
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i figure im okay with my 12/15mpg... <img src="/forums/images/graemlins/zombie.gif" alt="" />
97 FZJ80, Stock, Factory Lockers.
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Re: Bosch O2 sensors=bad? True or false?
[Re: Jake97T]
#801058
03/29/07 10:03 PM
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Joined: Feb 2000
Posts: 4,160
Toyota Moderator
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how does one know your O2 sensor is going bad? ive got no CEL or codes right now...but mine are original... Here in CA, my experience has been that when its worn out I failed smog check due to high NOX (running hot/lean). Replacing the pre-cat sensor fixed it both times. I just bought OEM from the dealer...
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Re: Bosch O2 sensors=bad? True or false?
[Re: Jake97T]
#801059
03/30/07 04:40 AM
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Joined: Sep 2006
Posts: 981
Rock Warrior
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You aint got a road truck either anymore lol!
1996 T100, Mickey Thomson Classics, Bridgestone Dueler AT 265/75/16, custom offroad KC's.
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Re: Bosch O2 sensors=bad? True or false?
[Re: CJMT100]
#801060
04/01/07 01:44 AM
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Joined: Dec 2006
Posts: 44
Getting the Wheeling Fever
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I read on another forum that Toyota will replace the 02 sensor for free when the truck hits 80,000 miles., according to the poster there is a reference to it in the "maintenance section of the manual" I don't have that manual.
Any one know anything about this?
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Re: Bosch O2 sensors=bad? True or false?
[Re: CJMT100]
#801061
04/01/07 03:39 AM
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Joined: Jan 2005
Posts: 35
Getting the Wheeling Fever
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Guys,
I wish I'd read this sooner. I replaced mine last week with a Bosch unit. It went in fine. Same mounting flange, same wiring harness, but it was shorter. I have been getting about the same mileage, but was hoping for more. I guess I should have called the dealership.
Winkel
98 T100 SR5 4WD
Rhino Liner
Warn Hubs
Mostly Stock
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Re: Bosch O2 sensors=bad? True or false?
[Re: Winkel1]
#801062
04/01/07 04:23 PM
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Joined: Dec 2004
Posts: 159
Wheeler
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I could be wrong, but I doubt that Toyota is passing out new O2/AF sensors at 80K miles.
Auto manufacturers are required by law to warranty the emmissions controls for 80K, but unless you've got a CEL triggered by an O2/AF sensor code, or you've failed a smog check, once you get to 80K miles on the clock, I'll bet you'll be on your own nickel.
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Re: Bosch O2 sensors=bad? True or false?
[Re: Whizkidder]
#801063
04/02/07 05:49 AM
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Joined: Aug 2003
Posts: 676
Rock Warrior
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They did extend the warranty on the evaporative emissions control system on certain 96-98 Ts to 14yrs or 150K miles. Letters were sent to the owners listed in Toyota's records, but that doesn't help you with the O2 sensor.
1997 T-100 4X4 Xcab,Warn Hubs
02 Camry LE
2008 Yaris
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Re: Bosch O2 sensors=bad? True or false?
[Re: garym]
#801064
04/02/07 01:05 PM
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Joined: Dec 2006
Posts: 44
Getting the Wheeling Fever
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They did extend the warranty on the evaporative emissions control system on certain 96-98 Ts to 14yrs or 150K miles. Letters were sent to the owners listed in Toyota's records, but that doesn't help you with the O2 sensor. Does anyone have the T100 maintenance or warranty booklet to look for that reference to the O2 sensor?
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Re: Bosch O2 sensors=bad? True or false?
[Re: RichO]
#801065
04/05/07 06:08 AM
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Joined: Apr 2007
Posts: 4
Need a Spot
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I've used both. The original Toyota sensors were no good. I've already replace three of them. Two more and I'll have all of them replaced. Seems the heat shield is the problem on those sensors from early Tundra's. Just don't use the universal sensor and you'll be O.K.
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