p2195 O2 sensor question - Toyota Yaris Forums

myselfnjit · 01-20-2012, 11:23 AM

Hi all
2008 Yaris hatchback base here and the MIL just came on. Scanned it and got a p2195 O2 sensor code. (2 ofthe same code actually)
cleared it and it came back on the following morning.

any ideas?

any idea on how to test or tell which O2 sensor?

thanks in advance!

A-Dingo-Ate-My-Baby · 01-20-2012, 11:50 AM

Quote:

Originally Posted by myselfnjit

Hi all
2008 Yaris hatchback base here and the MIL just came on. Scanned it and got a p2195 O2 sensor code. (2 ofthe same code actually)
cleared it and it came back on the following morning.

any ideas?

any idea on how to test or tell which O2 sensor?

thanks in advance!

it's the a/f sensor (the one closest to the engine)

stuck lean signal, could be a bad connection could be a bad sensor

myselfnjit · 01-20-2012, 02:32 PM

alright so find a connector and clean it.
what about testing the sensor with a meter? anyone know what values I should see for resistance? would that be helpful or anything like it?

myselfnjit · 01-20-2012, 02:33 PM

and it would be this part then?
http://www.autozone.com/autozone/par...105_1784_97999

myselfnjit · 01-21-2012, 05:17 PM

alright, so I took open the connector to the front o2 sensor and deoxited it. pulled the ecu fuse hoping it clears the MIL to see if it returns. while I was down there I got a 22m wrench on the o2 sensor from the bottom side and got it to turn a tiny bit but have nowhere to move the wrench to get any more turns out of it. any ideas? special wrench? take other stuff off? (please no)

thetut · 01-22-2012, 10:36 AM

Back to Autozone: http://www.autozone.com/autozone/acc...er=272729_0_0_

myselfnjit · 01-22-2012, 08:38 PM

thanks! I have to wait a week or so before I have the money for the sensor but when I go I will see if the zone will lone the tool. if not I guess $25 is not so bad.

01-20-2012, 11:23 AM	#1
myselfnjit Drives: 2008 Yaris Join Date: Aug 2011 Location: Owego, NY Posts: 7	p2195 O2 sensor question Hi all 2008 Yaris hatchback base here and the MIL just came on. Scanned it and got a p2195 O2 sensor code. (2 ofthe same code actually) cleared it and it came back on the following morning. any ideas? any idea on how to test or tell which O2 sensor? thanks in advance!

01-20-2012, 02:32 PM	#3
myselfnjit Drives: 2008 Yaris Join Date: Aug 2011 Location: Owego, NY Posts: 7	alright so find a connector and clean it. what about testing the sensor with a meter? anyone know what values I should see for resistance? would that be helpful or anything like it?

01-20-2012, 02:33 PM	#4
myselfnjit Drives: 2008 Yaris Join Date: Aug 2011 Location: Owego, NY Posts: 7	and it would be this part then? http://www.autozone.com/autozone/par...105_1784_97999

01-21-2012, 05:17 PM	#5
myselfnjit Drives: 2008 Yaris Join Date: Aug 2011 Location: Owego, NY Posts: 7	alright, so I took open the connector to the front o2 sensor and deoxited it. pulled the ecu fuse hoping it clears the MIL to see if it returns. while I was down there I got a 22m wrench on the o2 sensor from the bottom side and got it to turn a tiny bit but have nowhere to move the wrench to get any more turns out of it. any ideas? special wrench? take other stuff off? (please no)

01-22-2012, 10:36 AM	#6
thetut Drives: 2007 4dr sedan Join Date: Jun 2009 Location: Montreal Posts: 94	Back to Autozone: http://www.autozone.com/autozone/acc...er=272729_0_0_

01-22-2012, 08:38 PM	#7
myselfnjit Drives: 2008 Yaris Join Date: Aug 2011 Location: Owego, NY Posts: 7	thanks! I have to wait a week or so before I have the money for the sensor but when I go I will see if the zone will lone the tool. if not I guess $25 is not so bad.