kluthage421 Posted January 5, 2009 Share Posted January 5, 2009 How many are on the '00 ES300? Quote Link to comment Share on other sites More sharing options...
gordonw Posted January 5, 2009 Share Posted January 5, 2009 Three. Quote Link to comment Share on other sites More sharing options...
camlex Posted January 5, 2009 Share Posted January 5, 2009 one between radiator and engine, second between engine and firewall Third after cat. Quote Link to comment Share on other sites More sharing options...
kluthage421 Posted January 13, 2009 Author Share Posted January 13, 2009 one between radiator and engine,second between engine and firewall Third after cat. I replaced the one after the cat and the one in the front of the engine with Denso. I have yet to do the rear engine one. How do I determine if I need Air/Fuel Ratio sensors (Wide band O2) or normal oxygen sensors? I am receiving check engine code P1135 which, means the Bank 1 Sensor 1 is having heater circuit problems--the one that hasn't been replaced yet. Could this have been caused by not replacing all the sensors at once or could it have happened to coincidentally gone bad? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
kluthage421 Posted January 14, 2009 Author Share Posted January 14, 2009 one between radiator and engine,second between engine and firewall Third after cat. I replaced the one after the cat and the one in the front of the engine with Denso. I have yet to do the rear engine one. How do I determine if I need Air/Fuel Ratio sensors (Wide band O2) or normal oxygen sensors? I am receiving check engine code P1135 which, means the Bank 1 Sensor 1 is having heater circuit problems--the one that hasn't been replaced yet. Could this have been caused by not replacing all the sensors at once or could it have happened to coincidentally gone bad? Thanks in advance. Anyone? Quote Link to comment Share on other sites More sharing options...
lenore Posted January 14, 2009 Share Posted January 14, 2009 The two mounted on the engine front and rear are air fuel sensors, the one before the muffler is an oxygen sensor. They are not the same on these engines yet they can be screwed into the different positions. Stick with The denso ones at the correct locations... Quote Link to comment Share on other sites More sharing options...
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