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You are watching: 2003 toyota rav4 o2 sensor location


Gents, I"ve read numerous threads on RAV4 air fuel sensors, but the one question I still have is where is it located?I/we replaced an O2 sensor near the bottom on the engine on the driver side, but we still get an air fuel sensor error message (P1135) but the manual doesn"t tell you where it is. Is it one of the upper sensors? If so, which side, driver? passenger?I"ve even seen drawings that show it in front of the catalytic converter, but there isn"t one there, they"re all up front.So, of the four sensors up front, and with the bottom 2 being O2 sensors, which of the two upper are the air fuel sensor?Thanks. Any help you can give would be greatly appreciated.Thanks.Chuck
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P1135 = A/F Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
.Thats going to be the top sensor on the RIGHT SIDE, FACING THE ENGINE from the front.
P1135 = A/F Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
.Thats going to be the top sensor on the RIGHT SIDE, FACING THE ENGINE from the front.

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thank you so much. I even bought a Haynes Book and they show contradictory information regarding the O2 sensor and the air fuel sensor within a few pages of each being discussed.One more question: can I use a universal sensor or does it have to be from Toyota?Thank you thank you. You don"t know how tough this has been to figure out.Chuck
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Well you could use an aftermarket sensor, but being a toyota tech, I cant just say go right ahead :lol:
Well you could use an aftermarket sensor, but being a toyota tech, I cant just say go right ahead :lol:
Drifter, thanks. I called around and did more web research and it has sounded to me like the air fuel sensor is different than the O2 sensor? I found Bosch and Densor sensors and I thought O2 was different from the air fuel sensor? Or are they all truly the same? I called a Toyota Dealership and the guy said "I"ve seen people put in the other (universal) sensors and they"ve come back with problems. I believe you, but I"m still not sure what to order? HEre"s what I find on the web.Bosch Air Fuel Ratio Sensor - 2001-2003 Toyota RAV4 4WD/4-Door 1AZFEOther products by BoschNo customer reviews yet. Be the first.List Price: $279.97Price: $187.90You Save: $92.07 (33%)In Stock.Ships from and sold by AutoPartsWAY.Product Features* RIGHT/UPPER SIDE OF CAT* 1 YEAR WARRANTYIF it"s not this, then what is it? Is it just another O2 sensor like the one we replaced on the lower right hand side of the engine as you face it? We replaced that one to get rid of the O2 sensor error.Thanks...I won"t ask any more questions.
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)) I appreciate your help.