CEL p1135

yzrider3087 · 05-01-2012, 10:17 PM

Throwing p1135 code... which is for the upstream o2 sensor. Ive read that that sensor is actually more of an a/f sensor and not an o2 sensor.

I've reset the CEL and throw the code instantly after being reset. My truck doesnt seem to be running any differently. What would be the ill effects of running my truck like it is... I dont have the extra cash right now to buy a $160 sensor, and have been driving it for the last few days with the CEL on and honestly cant tell a difference in how the truck runs. Will I be ok for the next week or so untill I can get a new sensor?
Seems like if the a/f sensor is bad I would notice a difference in the way the truck runs..?

4wd_mofo · 05-02-2012, 10:32 AM

Quote:

Originally Posted by yzrider3087

Throwing p1135 code... which is for the upstream o2 sensor. Ive read that that sensor is actually more of an a/f sensor and not an o2 sensor.

I've reset the CEL and throw the code instantly after being reset. My truck doesnt seem to be running any differently. What would be the ill effects of running my truck like it is... I dont have the extra cash right now to buy a $160 sensor, and have been driving it for the last few days with the CEL on and honestly cant tell a difference in how the truck runs. Will I be ok for the next week or so untill I can get a new sensor?
Seems like if the a/f sensor is bad I would notice a difference in the way the truck runs..?

whats your year/engine size of your truck? how many miles do you have on your truck? And yea, you won't notice much of any difference in performance, but your gas mileage will suck and that CEL will stay on all the time.

if your running what i see is to be a 2002 V6 auto then i recommend ...

http://www.amazon.com/Denso-234-9001...ar=1&carId=010

under $100 shipped to your door.

yzrider3087 · 05-03-2012, 10:26 AM

I just replaced that sensor about 20k miles ago when I did my URD o2 Sim.... I picked up a Bosch one though, maybe that is my issue? Seems like it should have lasted a little longer... Is there something that could be tripping the sensor and not the sensor actually going bad?

Crawler677 · 05-03-2012, 11:04 AM

Quote:

Originally Posted by yzrider3087

I just replaced that sensor about 20k miles ago when I did my URD o2 Sim.... I picked up a Bosch one though, maybe that is my issue? Seems like it should have lasted a little longer... Is there something that could be tripping the sensor and not the sensor actually going bad?

go with denso

4wd_mofo · 05-03-2012, 03:22 PM

Quote:

Originally Posted by Crawler677

go with denso

x2, bosch is an ok brand name, but Denso makes the OEM parts for Toyota and many other import manufacturers. So its a trusted name and proven fit right the first time.

NorcalPR · 05-03-2012, 06:55 PM

For some reason these yotas don't like Bosch. Plugs included...

Go with denso

J-Man · 05-04-2012, 12:14 AM

ur part # Denso 234-9001 (02 3.4 auto) - front upstream a/f sensor

I just bought one (234-9003) for my 01 5spd from Amazon for $101.00 Its a true genuine denso a/f sensor. Thats the cheapest place ive found.

boshak · 05-04-2012, 01:28 AM

Quote:

Originally Posted by J-Man

ur part # Denso 234-9001 (02 3.4 auto) - front upstream a/f sensor

I just bought one (234-9003) for my 01 5spd from Amazon for $101.00 Its a true genuine denso a/f sensor. Thats the cheapest place ive found.

Will this o2 clear CA emissions? I'm in need of one also.

J-Man · 05-04-2012, 11:48 AM

Quote:

Originally Posted by boshak

Will this o2 clear CA emissions? I'm in need of one also.

Check out gadgets site to see your application.

http://www.urdusa.com/More-Products-...vq29q99kthfvo0

boshak · 05-04-2012, 01:02 PM

Nice link thanks! What's odd is tacomas 01 and prior have a CA specific sensor. I wonder why the 02+ don't and when this document was last updated.

x2468 · 05-14-2012, 08:24 PM

Im throwing the same code and the read out said something about the heater unit on the 02 sensor. Is that wat we are talking about here?

TheDurk · 05-15-2012, 06:45 PM

Quote:

Originally Posted by boshak

Nice link thanks! What's odd is tacomas 01 and prior have a CA specific sensor. I wonder why the 02+ don't and when this document was last updated.

Actually, the 2001 Cali. and 49-state are listed separately but they are the same sensors. 1999 and 2000 were the only years Toyota had separate exhaust systems for California. From 2001 on the standards were unified and all 50 states used the wideband A/F sensors in front that came on the Cali.'s in 1999 and 2000.

05-01-2012, 10:17 PM	#1
yzrider3087 Senior Member Join Date: Nov 2009 Location: Seattle, WA Posts: 270	CEL p1135 Throwing p1135 code... which is for the upstream o2 sensor. Ive read that that sensor is actually more of an a/f sensor and not an o2 sensor. I've reset the CEL and throw the code instantly after being reset. My truck doesnt seem to be running any differently. What would be the ill effects of running my truck like it is... I dont have the extra cash right now to buy a $160 sensor, and have been driving it for the last few days with the CEL on and honestly cant tell a difference in how the truck runs. Will I be ok for the next week or so untill I can get a new sensor? Seems like if the a/f sensor is bad I would notice a difference in the way the truck runs..? __________________ 2002 Xtra Cab 3.4L Auto TRD SR5-TRD Supercharger-TRD 7th Injector-TRD Headers-Catless Straight Pipe w/ TRD Catback- URD O2 Sim-Front 4" ProComp w/ OME 882's, Rear 5" AllPro Springs 1.5" Shackles and Bilstein 5125's-315/75/16 BFG KM2's on Black Steelies-Tundra Brake Swap w/ Slotted and Dimpled Rotors-Trail Gear Sliders-Demello Hybrid Rear Bumper-Custom Mounted XRC8 Winch-Viper Security w/ Remote Start

05-03-2012, 10:26 AM	#3
yzrider3087 Senior Member Join Date: Nov 2009 Location: Seattle, WA Posts: 270	I just replaced that sensor about 20k miles ago when I did my URD o2 Sim.... I picked up a Bosch one though, maybe that is my issue? Seems like it should have lasted a little longer... Is there something that could be tripping the sensor and not the sensor actually going bad? __________________ 2002 Xtra Cab 3.4L Auto TRD SR5-TRD Supercharger-TRD 7th Injector-TRD Headers-Catless Straight Pipe w/ TRD Catback- URD O2 Sim-Front 4" ProComp w/ OME 882's, Rear 5" AllPro Springs 1.5" Shackles and Bilstein 5125's-315/75/16 BFG KM2's on Black Steelies-Tundra Brake Swap w/ Slotted and Dimpled Rotors-Trail Gear Sliders-Demello Hybrid Rear Bumper-Custom Mounted XRC8 Winch-Viper Security w/ Remote Start

05-03-2012, 06:55 PM	#6
NorcalPR NorCal Chapter Pres My Rig: SAS'd 01 Tacoma Join Date: Apr 2005 Location: In Cali Posts: 11,348	For some reason these yotas don't like Bosch. Plugs included... Go with denso __________________ Hi, my name is Phill, above are things I say W6FTW Do you live in NorCal? Have you checked out the NorCal Section located here? If not check in today!

05-04-2012, 12:14 AM	#7
J-Man Senior Member Join Date: Dec 2004 Location: Santa Monica, Ca Posts: 469	ur part # Denso 234-9001 (02 3.4 auto) - front upstream a/f sensor I just bought one (234-9003) for my 01 5spd from Amazon for $101.00 Its a true genuine denso a/f sensor. Thats the cheapest place ive found. __________________ 2001 Tacoma TRD, & 2000, 1999, 1997 Toyota 4Runners -all are 5spd 4x4 v6 with saw's / ome suspension.

05-14-2012, 08:24 PM	#11
x2468 Member Join Date: Nov 2011 Posts: 73	Im throwing the same code and the read out said something about the heater unit on the 02 sensor. Is that wat we are talking about here? __________________ 2002 V6 4wd TRD Ext Cab Auto 881s on OME 90004 struts Wheelers AAL with Bilstein 5100s and Timbrens Grey Wire mod Air Horn (previous owner )

05-04-2012, 01:02 PM	#10
boshak Member Join Date: Jun 2005 Location: Socal Posts: 79	Nice link thanks! What's odd is tacomas 01 and prior have a CA specific sensor. I wonder why the 02+ don't and when this document was last updated.

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