RX 300 Engine Codes
Thread Starter
Driver School Candidate
Joined: Oct 2008
Posts: 1
Likes: 0
From: TX
RX 300 Engine Codes
Hey guys!! New to the forum but I am a Lexus lover just like the rest. I have a 1999 RX300 that is giving me two check engine light codes. One of them reads P1133 Air/Fuel Ratio Sensor Circuit Response Malfunction
(Bank 1 Sensor 1) and P1135 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1). Just wondering what needs to be done to fix this and also how difficult it would be to do this.
Thanks,
Zo
(Bank 1 Sensor 1) and P1135 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1). Just wondering what needs to be done to fix this and also how difficult it would be to do this.
Thanks,
Zo
CL Community Team
Joined: Apr 2004
Posts: 17,329
Likes: 210
From: Miami, Florida
Welcome to the Club. This particular sensor is behind the engine block, but what I recommend is pulling the battery cables off temporarily and see if the codes go away. If not, I would do a search on the forum as we have had quite a few thread on this code and suggestions as to how to change the sensor.
Driver School Candidate
Joined: Oct 2008
Posts: 2
Likes: 0
From: Michigan
I just fixed my P1135 code. It's your primary o2 sensor. And from wasting a lot of money you take it from me not to buy an aftermarket o2 sensor. Buy an OEM Lexus one. I work for a car performance shop and can get them wholesale. I can get you one for $190. I think retail price was $235.
Lexus Champion
Joined: Feb 2008
Posts: 1,709
Likes: 16
From: Ca.
I just fixed my P1135 code. It's your primary o2 sensor. And from wasting a lot of money you take it from me not to buy an aftermarket o2 sensor. Buy an OEM Lexus one. I work for a car performance shop and can get them wholesale. I can get you one for $190. I think retail price was $235.
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