Question about 1998 Toyota Avalon

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Where is location of oxygen sensor for toyota avelon 2001?

Oxysgen sensor

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6ya6ya
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Posted on Jan 02, 2017

c17hydro
  • 2984 Answers

SOURCE: replace oxygen sensor

REMOVAL & INSTALLATION Start the engine and allow it to reach normal operating temperature, then turn the ignition switch OFF. Disconnect the negative battery cable. Open the hood and locate the O2sensor connector. It may be necessary to raise and safely support the vehicle for access to the sensor and its connector. NOTE: On a few models, it may be necessary to remove the passenger seat and lift the carpeting in order to access the connector for a downstream O2sensor. Disengage the O2sensor pigtail connector from the vehicle harness connector. NOTE: There are generally 2 methods used to mount an O2sensor in the exhaust system. Either the O2sensor is threaded directly into the exhaust component (screw-in type) or the O2sensor is retained by a flange and 2 nuts or bolts (flange type). WARNING To prevent damaging a screw-in type O2sensor, if excessive force is needed to remove the sensor lubricate it with penetrating oil prior to removal. Also, be sure to protect the tip of the sensor; O2sensor tips are very sensitive and may be easily damaged if allowed to strike or come in contact with other objects. Remove the sensor, as follows: Screw-in type sensors: Since O2sensors are usually designed with a permanently-attached wiring pigtail, it may be necessary to use a socket or wrench that is designed specifically for this purpose. Before purchasing such a socket, be sure that you can't save some money by using a box end wrench for sensor removal. Flange type sensors: Loosen the hold-down nuts or bolts and pull the sensor out of the exhaust component. Be sure to remove and discard the old sensor gasket, if equipped. You will need a new gasket for installation. Perform a visual inspection of the sensor. Black sooty deposits may indicate a rich air/fuel mixture, brown deposits may indicate an oil consumption problem, and white gritty deposits may indicate an internal coolant leak. All of these conditions can destroy a new sensor if not corrected before installation. To install: Install the sensor, as follows: NOTE: A special anti-seize compound is used on most screw-in type O2sensor threads, and is designed to ease O2sensor removal. New sensors usually have the compound already applied to the threads. However, if installing the old O2sensor or the new sensor did not come with compound, apply a thin coating of electrically conductive anti-seize compound to the sensor threads. WARNING Be sure to prevent any of the anti-seize compound from coming in contact with the O2sensor tip. Also, take precautions to protect the sensor tip from physical damage during installation. Screw-in type sensors: Install the sensor in the mounting boss, then tighten it securely. Flange type sensors: Position a new sensor gasket on the exhaust component and insert the sensor. Tighten the hold-down fasteners securely and evenly. Reattach the sensor pigtail connector to the vehicle harness connector. Lower the vehicle. Connect the negative battery cable. Start the engine and ensure no Diagnostic Trouble Codes (DTC's) are set. Posting pictures next......

Posted on Jun 06, 2009

  • 1986 Answers

SOURCE: toyota mr2 roadster 2001 engine light on code po141 oxygen sens

bank 1 will be whichever side cylinder 1 of your engine is and bank 2 will be the opposite side. It's named bank 1 and bank 2 so that no matter how the engine is laid out, bank 1 is always on the same side as cylinder 1. I cannot say whether the right hand or the left hand one will be bank 1 as I do not know where your cylinder 1 is. The garage should know

Posted on Sep 08, 2009

  • 114 Answers

SOURCE: i can't find knock sensor location bunk 2 toyota sienna 2001

It's under the intake manifold...oh joy

Posted on Sep 19, 2009

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crapiemael
  • 241 Answers

SOURCE: cant find bank 1 sensor 1 oxygen sensor on a 2001 toyota tundra

Drivers side is bank 1, sensor 1 is found by looking up from under the truck on the exhaust pipe just below the manifold.

Posted on Nov 18, 2009

wracefans24
  • 1985 Answers

SOURCE: problem locating the oxygen sensor for my 2000 Toyota Estima

drivers side ,sensor before converter

Posted on Jan 03, 2010

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I need help to confirm location of sensor 2 bank 2. CEL detect P0161. There are 4 sensors in which two are above the catalyc converter and two are below the converter. The part department staff says the...


that Toyota has a 2.4 l 2az-fe 14of 155 hp and ran from 2001-2007 after which a v6 engine was installed
the sensor is the one before the cat converter as it is a heated oxygen sensor (KO2S) and reports on the gas composition to the ECM for air/fuel ratio adjustments
the oxygen sensor (O2) is after the cat converter and reports on the cat operation
have the cat converter checked at an accredited muffler shop

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2001 Toyota Sequoia Oxygen sensors


No the wires won't likely be the same length

The front upstream sensors, are not the same
Part # as the rear,downstream monitor sensors

Go to Rock Auto.Com & look up your oxygen sensors
I would get the NTK or Bosch,if they have that

You do not replace the rear sensors, until they fail

You replace the front ones at 100,000 miles or sooner,
if they fail

Jun 02, 2012 | 2001 Toyota Sequoia

1 Answer

2001 Toyota Sequoia O2 sensor locations and fix


O2 sensor is mounted on exhaust system near engine before cat converter can't help with rest of question sorry

Jun 02, 2012 | 2001 Toyota Sequoia

1 Answer

Can you send me the rear passenger oxygen sensor location diagram?


The Sequoia has two oxygen senros that are bolted into the exhaust pipes coming out of each manifold. They are located roughly under the front seats. There is a known problem with the Sequoiua's oxygensors not being properly bolted into the flange. The two nuts will cecome loose and fall off, and if you suddenly accelerate, the oxygen sensor pops out (of course it will be dangling). You have to put it back with new gasket and new nuts.

Feb 13, 2012 | 2001 Toyota Sequoia

1 Answer

NEED TO KNOW THE LOCATION OF BANK 1 SENSOR 2 ON A 2001 TOYOTA AVALON


If single exhaust pipe, look for the bank 1 sensor 2 oxygen sensor to be either stuck into the side of the catalytic converter or just downstream of it.

If dual exhaust pipes, look for the bank 1 sensor 2 oxygen sensor to be just downstream of the catalytic converter for the bank of cylinders that contain cylinder 1.

Feb 26, 2011 | Toyota Avalon Cars & Trucks

1 Answer

I am working on a Toyota RAV 4 and it has a bank 1 sensor 2 Oxygen sensor that needs reploced Where is it located? Please help


bank 1 is the driverside on the intake manifold the o2 sensor by the catalytic converter

Feb 20, 2010 | 2001 Toyota RAV4

2 Answers

Cant find bank 1 sensor 1 oxygen sensor on a 2001 toyota tundra


Drivers side is bank 1, sensor 1 is found by looking up from under the truck on the exhaust pipe just below the manifold.

Jun 01, 2009 | 2001 Toyota Tundra

2 Answers

Air Fuel Sensor on a 2001 Toyota tacoma


4 cylinder: one air-fuel sensor (on the pipe after the manifold) and one oxygen sensor after the catalytic converter

6 Cylinder: two air-fuel sensors (one for each manifold) and one oxygen sensor after the catalytic converter.

Dec 29, 2008 | 2001 Toyota Tacoma

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