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Where do I find the upstream O2 sensor on 2003 buick rendezvous

P0135 code on reader bank 1 sensor1

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: P0135 and P0141 codes

possibly unplugged

Posted on Nov 12, 2008

  • 718 Answers

SOURCE: how to replace a 2002 buick rendezvous o2 sensor

The O2 sersor will require a special socket to avoid damaging the wiring on the new unit. (the old one really doesn't matter so any socket that works can be used on it)
The first thing to do is spray a thread release agent like PB Blaster® around the threads. You should do it for several days between driving.
Call the auto parts stores to find one that has loaner tools. They will require a deposit until the socket is returned. It will look something like the picture. Yes you will need a socket wrench too.
Some more information to consider from a forum

"You might want to take the O2 sensor you just replaced back and get two new ones. Some times new O2 sensors are defective, also when replaceing them I found it better to replace all of them at the same time for sometimes when replaceing only one the computer sometimes sends back false codes. Another thing is if you buy an after market O2 sensor the wires are just a little bit longer and can cause the computer to send back false codes. The best O2 sensors that I have found are the Boch Platinums designed for your vehicle."

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Posted on Mar 09, 2009

  • 54 Answers

SOURCE: O2 sensors on 2002 buick rendezvous

hi im wes the o2 sensor is always in the exaust newer buicks have one before the converter (sometimes in the exaust manifold) one after the converter if it has duall exaust it could have four
left bank sensor one is before the converter on drivers side bank two sensor 2 would be passanger side after the converter does this help?

Posted on Mar 12, 2009

  • 1985 Answers

SOURCE: 98 buick park ave, hard to start, run's rough. po172 code

oxygen sensor in exhaust

Posted on Dec 09, 2009

  • 3640 Answers

SOURCE: Scan with code reader P0440

p0440 is a failure in the evaporative system, could be a hole in lines or a bad gas cap. screw cap on tighter to see if this may be your problem. the vent in the cap may not be letting pressure out, so loosen it to see. 02 sensor is a different code. have vehicle scanned to find codes. 02 sensor, egr, are part of the emission system etc. have a good day!!

Posted on Sep 15, 2010

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Got Honda accord 2000 code po135 replaced 02 sensor and stil show same code

How to Diagnose a P0135 -Heater
Performance Bank 1 Sensor 1 (GM 3.5L)
January 31, 2012 Updated: October 29, 2014 Written by: Abraham Torres-Arredondo Article Id: 371

image_1.gifIf your check engine light is on and you have a diagnostic trouble code P0135 stored in the PCM's memory... then you've come to the right place to test and troubleshoot the upstream oxygen sensor.
A P0135 DTC says: HO2S Heater Performance Bank 1 Sensor 1... and this means that the PCM (Powertrain Control Module = Fuel Injection Computer) has detected a problem with the front oxygen sensor's heater element or a problem in the heater's circuit (wires).
In this tutorial, I'll show you how to check the oxygen (O2) sensor's heater element and the two circuits that feed it with power (10 to 12 Volts) and ground with a multimeter.
In case you're wondering, where the oxygen (O2) sensor that the code P0135 is accusing of being BAD is... this bad boy is located on the exhaust manifold and before the catalytic converter.
To help you navigate this article, here are its main points:
  1. Symptoms of a BAD Oxygen Sensor Heater Element.
  2. What Tools Do I Need to Test Code P0135?
  3. What Does the Heater Inside the Oxygen Sensor Do?
  4. Circuit Descriptions of the Downstream Oxygen Sensor.
  5. Start Here.
  6. TEST 1: Oxygen Sensor Bank 1 Sensor 1 Test.
  7. TEST 2: Checking 12 Volts to O2 Heater.
  8. TEST 3: Checking the O2 Heater's Ground Circuit.
  9. TEST 4: Ohming the O2 Heater Element.
  10. P0135 O2 Sensor Heater Test Summary.
Buying a Digital Multimeter for Automotive Diagnostic Testing (found at:
  • Scan Tool.
    1. Don't have one?... check out my recommendation: Abe's Scan Tool Recommendation.
  • Wire Piercing Probe.
    1. Although this tool is not an absolute must, if you do buy one, you'll realize just how easy it makes testing the voltages inside the wires.
    2. If you need to see what this tool looks like, you can see it here:Wire Piercing Probe.
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  • Applies To:
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    Buick Vehicles:
    • Rainier 4.2L
      • 2004, 2005
    Chevrolet Vehicles:
    • Colorado 3.5L
      • 2004, 2005
    • Trailblazer
      • 2004, 2005
    3.5L image_thumb_home_page_1.jpg
    How To Test for a Blown Head Gasket (GM 3.5L, 4.2L)
    How to Test the MAF Sensor and Codes: P0100, P0101, P0102, P0103
    How To Test for a Blown Head Gasket (GM 3.5L -FWD)
    All Articles: 3.5L "A day without sunshine is like, you know, night"
    Steve Martin

    Feb 03, 2015 | 2000 Honda Accord

    1 Answer

    1998 nissan altima trouble code p0135

    The code P0135 means O2 sensor heater circuit malfunction bank 1 sensor 1. This means you most likely have a bad O2 sensor. The possible causes are:

    TT - Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground
    - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection
    - Faulty Engine Control Module (ECM) Usually the code indicates a bad Oxygen sensor, but an intake vacuum leak or a failing fuel pump can cause the code, so check your intake vacuum hose for a leak or hole. But most likely, you have a faulty Oxygen sensor. Now Bank 1 Sensor 1 means the bad O2 sensor is the one on the number one cylinder side (which is the cylinder closest to the timing belt or where all your belts and pulleys are),which is bank one. If you look really closely, you will see that the number 1 cylinder is just a little bit closer to the belts than the number 2 cylinder. Now that you know which side you are dealing with, the next step is which sensor. There are two O2 sensors on each side (upstream or downstream), four total. Sensor 1 is the upstream sensor, which is before the catalytic converter closest to the exhaust manifold. Number 2 sensor is on or after the catalytic converter. So in short, you are replacing the O2 sensor on the Number 1 cylinder side before the catalytic converter. They are a pain to remove. Get some Pb Blaster lubricating oil and spray on the threads and let sit for 10 minutes and spray it again. You will need a 7/8 Oxygen sensor removal socket to remove it. Don't forget to disconnect negative battery terminal and O2 wire harness first.. Any questions please feel free to email me. Good luck.

    Nov 30, 2013 | 1998 Nissan Altima

    1 Answer

    On the audi a4 2003 what are the codes P 0135 and P0234?

    Code P0135 -
    Oxygen O2 Sensor Heater Circuit Malfunction (Bank1, Sensor1)

    P0135. Turbo boost pressure too high.

    O2 sensor heater malfunction: ...Check all fuses. If good, replace O2 sensor.

    Over boost: Check N75 Boost control solenoid and all vacuum hoses to and from N75.

    Oct 30, 2013 | 2003 Audi A4 Cabriolet

    1 Answer

    Check engine fault code 1646

    P1646 is a defective heater circuit on an o2 sensor. (bank 1 sensor1)I'm assuming you have the 2.5 V6 petrol engine? Replace the upstream sensor on bank1 to cure problem.

    May 28, 2011 | 2003 Jaguar S-Type

    2 Answers

    Po130 bank 1 sensor1 my question is where is bank1 sensor1 on a mercury montannier 98 v8

    Bank 1 is always on the same side as the number 1 cylinder. Bank 2 is the other side of the engine. Sensor 1 is always before the catalytic converter. Sensor 2 is always after the catalytic converter.

    Bank 1 sensor 1 is on the passenger side before the catalytic converter.

    Nov 17, 2010 | 1998 Mercury Mountaineer

    2 Answers

    Check engine light on reads p1135

    On Toyota models the error code meansthe problem is as described below

    P1135 Air/Fuel sensor heater circuit response (bank 1 sensor1).

    It indicates the most common problem with your O2 sensor . Bank ! sensor indicates the upstream O2 sensor. It might be faulty and needs to be replaced.

    Nov 15, 2010 | Toyota RAV4 Cars & Trucks

    2 Answers

    I have a gmc envoy & the trouble codes are p0107,p0130,p0135 & p0171 can you tell me what the problem can be.

    P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input

    P0130 02 Sensor Circuit Malfunction (Bank I Sensor 1)

    P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

    P0171 System too Lean (Bank 1)

    Check your Manifold Absolute Pressure Sensor, and it might be a good time to install a new Upstream O2 Sensor.

    It might also be beneficial to have your fuel pressure checked if the engine is really running Lean, but this may be caused by a faulty O2 sensor.

    Jul 19, 2010 | GMC Envoy XL Cars & Trucks

    2 Answers

    2001 Olds Alero oxygen sensor bank 1 P0135

    p0135 indicates bank 1 sensor 1 which is before the cat.

    May 22, 2010 | 2001 Oldsmobile Alero

    1 Answer


    po700 is automatic transmission fault detected. poo56 is didnt see .po135 is upstream heated o2sensor heater circuit fault bank 1. po155 upstream heated o2 sensor heater circuit fault bank2.po 161 is downstream heated o2 sensor heater circuit fault bank 2.

    May 15, 2009 | 2002 Dodge Intrepid

    3 Answers

    How to locate the oxygen sensor in a LEXUS LS430 (Bank1 Sensor1)

    the O2 sensor for bank one sensor one is located between the catalytic converter and the engine in the exhaust head pipe. see photo of your engine cylinder layout, the sensor u want to replace is the one at the cylinder #1 0aa2e73.gif bank on right.

    Apr 15, 2009 | 2001 Lexus LS 430

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