Josh Posted July 13, 2004 Share Posted July 13, 2004 I have about 70000 miles on my RX 300 and the check engine light came on today. I took it Auto Zone and the code is P1153. Air/fuel ratio sensor circuit response malfunction......what now? Is this a major problem or just something to replace? The oil was just changed and I'm due for more maintenence but if anyone has any info on this...I'd really appreciate it! Thanks! Quote Link to comment Share on other sites More sharing options...
jkosasih Posted July 13, 2004 Share Posted July 13, 2004 P1153 should be Heated Oxygen Sensor (HO2S) insufficient switching bank 2 sensor 1, which is located in the front by your exhaust manifold. The best condition in which to remove the sensor is when the engine is moderately warm ( NOT HOT). The exhaust maniford has developed enough heat to expand and make the removal easier. You can do it yourself, take it to dealer will cost you arm and leg. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.