P0138 and P2195 on V6 - Toyota RAV4 Forums
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#1 (permalink) Old 02-27-2010, 07:27 AM
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P0138 and P2195 on V6

P0138 O2 sensor high voltage B1S2
P2195 A/F sensor stuck lean B1S1
Had these 2 codes and of course Check engine, VSC and 4WD lights on.
The dealer changed the O2 sensor-B1S2 first but didn't solve the problem-lights were still on.
They were not able to removed the second one (A/F sensor) so they changed the whole cat ass'y with a new A/F sensor and a new cat.
All covered under warrenty.
The car had 27068km.
Problem seems to be solved-10 days: no problems...future will tell...


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#2 (permalink) Old 03-06-2010, 07:45 PM
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I think that would be Bank 2 Sensor 1, from the pdf posted in the other post, It looks like the Bank1 sensor1 is in the back by the firewall. This one I probably would attempt, the other one looks like a bear to get too.
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#3 (permalink) Old 03-07-2010, 08:28 AM
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You are correct TBD1.
Sorry my fault. I used that picture for ''illustration'' because when looking at it, it is so easy to get the idea of what a cat looks like and that's why I did not mention which bank (no 1 or 2) and which sensor(no 1 or 2)

Here's another view showing both sides of the engine.
It's from the Service manual. The file name is '' 00600.pdf ''
2006_RAV4_SM\2006 Toyota RAV4 Repair Manual\2GR-FE Engine Control System\SFI System\00600.pdf

If I had to changed that A/F sensor and realise it is kinda ''welded'' to the cat, I think I would removed the cat and heat it but I don't know how strongs are the walls of the cat...could definitly be a good challenge!...
I am not sure on this but I would think that if the inside of the cat is burned or damaged, I think the A/F sensor could throw that same code P2195.
Anyway, double check what I'm assuming because I'm not a mechanic!

Good luck!


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#4 (permalink) Old 03-07-2010, 11:25 AM
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Quote:
Originally Posted by norm
P0138 O2 sensor high voltage B1S2
P2195 A/F sensor stuck lean B1S1
Had these 2 codes and of course Check engine, VSC and 4WD lights on.
The dealer changed the O2 sensor-B1S2 first but didn't solve the problem-lights were still on.
They were not able to removed the second one (A/F sensor) so they changed the whole cat ass'y with a new A/F sensor and a new cat.
All covered under warrenty.
The car had 27068km.
Problem seems to be solved-10 days: no problems...future will tell...

Last night out driving, headlights on nothing special around 40 mph. Engine check light comes on followed about 30 seconds later by VSC and 4WD lights.
When home (no signs of any physical effects). Read code and is as follows:

P2197 O2 sensor signal stuck lean Bank 2 Sensor 1
Had this code and of course Check engine, VSC and 4WD lights on.
Car has 6,000 miles on it, just got the accelerator pedal "Fix" last week.

Rav4 2009 3.5L Ltd 4WD
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#5 (permalink) Old 03-07-2010, 03:34 PM
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6000 miles ?? Unlucky it happened, lucky it is still under warranty. I thought mine going at 35,000 was bad, unfortunatly it is 37 months old.
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#6 (permalink) Old 03-08-2010, 12:15 PM
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Originally Posted by TBD1
6000 miles ?? Unlucky it happened, lucky it is still under warranty. I thought mine going at 35,000 was bad, unfortunatly it is 37 months old.
Took car into dealer this morning. They verified the diagnostic trouble code that I provided (P2197) and ordered an Air/Fuel Ratio Sensor. It will be a couple of days before part is received and installed. Will post final outcome.
6k miles, under warranty.

Rav4 2009 3.5L Ltd 4WD
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#7 (permalink) Old 03-08-2010, 04:00 PM
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Took mine in too, told them about the code (P2195) and would need a B1S1 sensor, Service guy gives me a long speil (sp) about it could be the ECM or another sensor (blah, blah blah) would take a hour to check the diagnostics for $85. I finally relented and told him to go ahead, after a hour he comes back and says it needs B1S1 sensor (i thought no $$hit, now you are going to charge me $85. to confirm what i told him) they didn't have one in stock, so it is going to be parts ($220.) for $360. total including the $85. diagnostic. The next one I think I will do myself.
He did ask me about the rubber oil hose, I told him if he would of looked a little closer he could of seen that I already had replaced it with the all steel line (which from the look on his face, i don't think he ever heard off).
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#8 (permalink) Old 03-08-2010, 08:16 PM
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Don't want to complicate things but here's an option that I think needs some attention if the car is out of warrenty.

See the link below, it's the last post of that page (P3/3).

The cause of the VSC lights, etc to come on was the exhaust manifold not seating well on the head of the engine, seems like it concludes it could be a bad seating problem from the manifold itself. I'm not sure what was the original codes that the guy said it disapeared when it was changed but...

Again on mine they changed both the A/F sensor and the exhaust manifold so I can'tell.
It is very surprising that these sensor go bad within low mileage range. And so many that happened just on this forum including mine.

Welll,well,well...

http://rav4world.com/forums/viewtopi...fold&&start=30

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#9 (permalink) Old 03-08-2010, 08:59 PM
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Interesting, Thanks ! That would sure be something to look at in a low mileage failure. Although my last few vehicles all went over 100,000 and none had a sensor replaced, so I would consider my 35,000 to be low mileage.
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