Diagnostic Code P2195 on Toyota Avalon touring?

In this case,the customer is here because the repair cost which he got from Toyota dealership is too much.
The customer got check engine light and VSC light ON dash.After getting the error code scanned.It showed P2195.


The dealer ship mentioned it as a faulty O2 sensor and because Toyota does not make a direct replacement, he will need other sensors and manifold replaced too.And the cost for this is about $1500.

And there is also service bulletin TBS 0114-08 released by Toyota on this types of problem,which other Toyota Avalon users are also facing.
On this basis the troubleshooting details for this problem is as follows:------

First of all let me clarify a few things. This is not an O2 sensor fault,it is an air fuel ratio sensor or AFR sensor problem. The technical service bulletin that is referred to doesn't say that you have to replace the exhaust manifold. Proper testing needs to be done to confirm whether or not there is an issue with the catalyst or the manifold itself.
 This code mostly sets because the air fuel ratio sensor is stuck in the lean signal mode. The manufacturing process of the sensor has been changed to correct this problem. In most of the time you can get by with just changing the air fuel ratio sensor. This is a DENSO AFR sensor. It can be purchased at any or most auto-parts stores or the dealer can sell the sensor to you separately. A lot of guys damage the manifold threads when trying to remove the sensor. If the sensor cracks loose then gets tight do not force it. Get some brake fluid, yes I mean brake fluid, and apply it to the base of the sensor on the manifold. Let it set for a few minutes work the sensor back and forth and it will come right out. The air fuel ratio sensor itself sells for about $250. More than likely this is all you're going to need. There are several bulletins with regard to these air fuel ratio sensor problems. As per the problem description provided I would not replace the manifold but replace the AFR sensor.
Getting proper inspection done will always help to know and confirm the problem.

This details will help.
Thanks.

See below latest solved car problems :-----

Diagnostic code P1330 on Kia 2WD Sorento?

http://technoanswers.blogspot.in/2012/02/diagnostic-code-p1330-on-kia-2wd.html

Diagnostic code P0700, P1330, P1121 on KIA?

http://technoanswers.blogspot.in/2012/02/diagnostic-code-p0700-p1330-p1121-on.html

2003 Kia Sorento shows error code P1330?

http://technoanswers.blogspot.in/2012/02/2003-kia-sorento-shows-error-code-p1330.html

OBD code P1330 on 2003 Kia Sorento?

http://technoanswers.blogspot.in/2012/02/obd-code-p1330-on-2003-kia-sorento.html

OBD code P01300 on Toyota RAV4?

http://technoanswers.blogspot.in/2012/02/obd-code-p01300-on-toyota-rav4.html

OBD code P0768?

http://repairhelpcenter.blogspot.com/2012/01/obd-code-p0768.html

Evaporative Emissions System codes details?

http://schematicsdiagram.blogspot.com/2011/11/evaporative-emissions-system-codes.html

           

Engine Misfire codes on Chevrolet Malibu?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

ABS trouble codes for all 1994-00 Acura models?

http://repairhelpcenter.blogspot.com/2011/11/abs-trouble-codes-for-all-1994-00-acura.html

Diagnostic code P0010?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0010.html

Diagnostic Code P1396?

http://howtobyme.blogspot.com/2011/11/diagnostic-code-p1396.html

Code P0452?

http://howtobyme.blogspot.com/2011/11/code-p0452.html

OBD code P0172 on Buick Park Avenue?

http://howtobyme.blogspot.com/2011/11/obd-code-p0172-on-buick-park-avenue.html

DTC Code P0321 on Buick Park Avenue?

http://howtobyme.blogspot.com/2011/11/dtc-code-p0321-on-buick-park-avenue.html

                      

Error Code P0471 on 2007 Dodge Ram 3500?

http://howtobyme.blogspot.com/2011/11/error-code-p0471-on-2007-dodge-ram-3500.html

P0304 Error code on Dodge Neon?

http://howtobyme.blogspot.com/2011/11/p0304-error-code-on-dodge-neon.html

                     

OBDII scan is receiving NO BUS CODE?

http://howtobyme.blogspot.com/2011/11/obdii-scan-is-receiving-no-bus-code.html

How to Clear OBD error Codes on Acura Car Models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-clear-obd-error-codes-on-acura.html

Diagnosis and Testing Car Components?

http://vwrepairhelp.blogspot.com/2011/11/diagnosis-and-testing-car-components.html

Diagnostic Trouble Codes list for Acura Car Models?

Part 1.

http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura_18.html

Diagnostic Trouble Codes list for Acura Car Models?

Part 2.

http://repairhelpcenter.blogspot.com/2011/11/diagnostic-trouble-codes-list-for-acura.html

OBD Code is cleared but check engine light will not RESET?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-is-cleared-but-check-engine.html

Diagnostic Code 43 and 71 on 1991 Toyota Pickup?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-43-and-71-on-1991.html

Code P0132 On Acura TL?

http://schematicsdiagram.blogspot.com/2011/12/code-p0132-on-acura-tl.html

P0031 code on Dodge Dakota?

http://schematicsdiagram.blogspot.com/2011/12/p0031-code-on-dodge-dakota.html

How to get diagnostic Code without OBD Scanner on Pre 1995 Toyota Pickup?

http://schematicsdiagram.blogspot.com/2011/12/how-to-get-diagnostic-code-without-obd.html

OBD-II Trouble Code P0300?

http://schematicsdiagram.blogspot.com/2011/12/obd-ii-trouble-code-p0300.html

Getting diagnostic code P0016?

http://schematicsdiagram.blogspot.com/2011/12/getting-diagnostic-code-p0016.html

How to Read Codes from Check Engine Light?

http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html

Diagnostic Code P0540 continues to return and the MIL light is on?

http://schematicsdiagram.blogspot.com/2011/12/diagnostic-code-p0540-continue-to.html

DTC Trouble Code P0401?

http://schematicsdiagram.blogspot.com/2012/01/dtc-trouble-code-p0401.html

Car misfires and error code P0306 and P0303 is shown?

http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

Diagnostic code P0463 on Ford F250?

http://technoanswers.blogspot.com/2012/01/diagnostic-code-p0463-on-ford-f250.html

Check engine light with codes P2195 and P2197?

http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html

Diagnostic error code P0121,P0505,P1000,P2101,P2104, P2110,P2135,P2106 on Ford F150?

http://technoanswers.blogspot.in/2012/01/diagnostic-error-code.html

P0174, P0037 and P2197 on Toyota RAV4?

http://technoanswers.blogspot.in/2012/02/p0174-p0037-and-p2197-on-toyota-rav4.html

P0352 Obd code on Toyota RAV4?

http://technoanswers.blogspot.in/2012/02/p0352-obd-code-on-toyota-rav4.html

Error code p0402 on Ford Escape?

http://technoanswers.blogspot.in/2012/02/error-code-p0402-on-ford-escape.html

Obd Code P0763 on Lexus?

http://technoanswers.blogspot.in/2012/02/obd-code-p0763-on-lexus.html

OBD code P0301, P0430 and P0174?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0301p0430-and-p0174.html

OBD code P0500 on LEXUS RX 300?

http://schematicsdiagram.blogspot.in/2012/02/obd-code-p0500-on-lexus-rx-300.html