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08-31-2010, 12:55 PM | #1 | |
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97 es300 cel = p0135
Good afternoon...I have a 1997 ES300 (175K miles) and the CEL came on. The code is P0135, and after reviewing the procedures in the FSM, I see that the first check is on the ECM. I'm guessing (at this point) that the ECM is probably good. The second troubleshooting step tells me to check (and replace if bad) the Heated Oxygen Sensor (Bank 1 Sensor 2). This seems to me to be a greater chance of being the point of failure, so I've decided to head down that route first.
Has anyone replaced this sensor before? The book tells me to remove the driver's seat and the carpet. Is there another (read: EASIER) way around that? Does what sits under the carpet then go through the floor into the exhaust? I'm fairly handy...but never worked on an O2 sensor before, and would like to have a better idea of what I'm getting myself into before I get started. Any assistance would be appreciated!!! Thanks! It also appears that Autozone may or may not be able to help me properly figure out which sensor that I'm going to need. Any advice there would be helpful as well.
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08 Honda Fit - 45,000 miles 08 Honda Odyssey - 32000 miles 97 Lexus ES300 - 175,000 miles *Gone, but still in the family* 98 Gr. Voyager 200,000 miles (the last 100K thanks to these forums) May she R.I.P. ***89 Mazda 929 180,612 miles*** |
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09-01-2010, 03:09 PM | #2 | |
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Re: 97 es300 cel = p0135
OK...here's what I have found out.
Bank 1 is on the side of the engine closest to the firewall. Bank 2 is the one closest to the radiator. Each Bank has 2 sensors, 1 before the cat. converter, and 1 after. The sensor BEFORE the CAT is an Air/Fuel Sensor, and the one AFTER the CAT is an O2 sensor. Functionally they are the same thing, with subtle differences in operating ranges as far as what levels they are sensing. Trying to get the part number is going to be the hardest part. Will post any updates!
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08 Honda Fit - 45,000 miles 08 Honda Odyssey - 32000 miles 97 Lexus ES300 - 175,000 miles *Gone, but still in the family* 98 Gr. Voyager 200,000 miles (the last 100K thanks to these forums) May she R.I.P. ***89 Mazda 929 180,612 miles*** |
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09-02-2010, 12:58 AM | #3 | |
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Re: 97 es300 cel = p0135
Don't forget a heated H02 sensor has a fuse.
The down stream HO2 sensor just tells the ecu, if the catalytic converter is working, I would have no problem putting a used one in for the replacement. The most important HO2 sensors are upstream for the air/fuel mix. Consider buying two new H02 sensors for banks 1 & 2 upstream, and put the used ones down stream. |
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09-02-2010, 09:39 AM | #4 | |
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Re: 97 es300 cel = p0135
any idea where this fuse is? it would be pretty nice if the problem was simply a blown fuse, although with 175K miles, I won't hold my breath.
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08 Honda Fit - 45,000 miles 08 Honda Odyssey - 32000 miles 97 Lexus ES300 - 175,000 miles *Gone, but still in the family* 98 Gr. Voyager 200,000 miles (the last 100K thanks to these forums) May she R.I.P. ***89 Mazda 929 180,612 miles*** |
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03-20-2011, 10:17 PM | #5 | ||
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Re: 97 es300 cel = p0135
Quote:
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