Question about 2001 Toyota Sienna

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Im tryinne change the premiun oxygen sensor but the colors of the cords are diffrent

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What?
What is a premium O2 Sensor?
If you have an O2 Sensor, that is not an exact copy of the one your replacing,take it back.

Posted on Oct 05, 2010

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Posted on Jan 02, 2017

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I have a 01 ford windstar im getting acode. P1132 can you explain why


P1132
Lack of HO2S-11 Switch, Sensor Indicates Rich A HEGO sensor indicating rich at the end of a test is trying to correct for an over-lean condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time. I would change both of the upstream (before the catalytic converter) O2 sensors (cylinder bank 0ne and two). 9 times out of ten this is the right guess to fix this code.

Sep 07, 2016 | 2001 Ford Windstar

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I put a new oxygen sensor on my 1999 chevy 4x4 blazer and it still has code p0146


This is Oxygen sensor circuit has no activity Bank 1 sensor 3 That means the computer sees no change from bias voltage (451mv) to a plus voltage (451mv-890mv) and a drop voltage (359mv-100mv) best describe as a open circuit must test at computer pin to determine open in wiring.

Nov 10, 2013 | 1999 Chevrolet Blazer

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I have a 2003 dodge neon i have changed my computer brain n all the sensor on my car my car keeps shutting off when im driving please help me im n need seriously i dont kno if it's a electrically prob


ask a local mechanic recomended by a friend or relative and let a mechanic have a look ,iam surprissed the dealer couldnt get it to go though

Nov 25, 2011 | 2003 Dodge Neon

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The codes im gettin are oxygen sensors 1,2 an 1000 revolution an cylinder misfire. change out both oxygen sensors an ignition coil an spark plugs an wires. im still gettin same codes.


when you get tird of replacing parts and guessing, get the vehicle hooked to a real time scanner ot a code scanner, someone with experience reading sensors can tell youwhere to start diagnosing, my guess so far is an intake or fuel problem, could be a vavuum leak bad injector or something of the sorts, realtime will give you readings on sensors and actuators that may not set a code themselves but reflect on another sensor, otherwise its a guessing game and a waste of money

Nov 19, 2010 | Mercury Sable Cars & Trucks

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How to repair po420 code on a 2002 toyota sienna


The P0420 code is Catalyst System Efficiency Below Threshold (Bank 1) error.
A code P0420 may mean that one or more of the following has happened:
  • Leaded fuel was used where unleaded was called for
  • An oxygen sensor is not reading (functioning) properly
  • The engine coolant temperature sensor is not working properly
  • Damaged or leaking exhaust manifold / catalytic converter / exhaust pipe
  • Retarded spark timing
  • The oxygen sensors in front and behind the converter are reporting too similar of readings
Some suggested steps for troubleshooting a P0420 code include:
  • Check for exhaust leaks at the manifold, pipes, catalytic converter. Repair as required.
  • Use a scope to diagnose the oxygen sensor operation (Tip: The oxygen sensor in front of the catalytic converter normally has a fluctuating waveform. The waveform of the sensor behind the converter should be more steady).
  • Inspect the downstream heated oxygen sensor (HO2), replace if necessary
  • Replace the catalytic converter
One thing to note is that many vehicle manufacturers
offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.


Oct 26, 2009 | 2002 Toyota Sienna

1 Answer

Match color coded wires


Ask the person who sold you the sensor. They should have the info. Ebay sellers frequently post connection info on their web sites.

Sep 26, 2009 | 2004 Saturn ION

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Hi i.m goin to change oxygen sensor on 3.7/v8 audi. i was looking for a bit of information on fiting 1.


hi im going to change oxygen sensor and im looking for a little information on how to fit it. a8 adui 4.2 2002

Jul 21, 2008 | 2002 Audi A8

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Oxygen sensor


Yes, its the oxygen sensors. install what you bought.

Jun 17, 2008 | 2002 Ford Ranger Regular Cab

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