Check Engine Light On
Posted 09 December 2003 - 11:53 PM
(a) Does my camry really has three sensors?
( Is it necessary to replace all the three sensor when only one of them is bad
© Where can I shop around for a cheaper price.
Posted 10 December 2003 - 07:31 AM
Two oxygen sensors are used. The Primary sensor is in the exhaust manifold (upstream) and the second oxygen sensor is after the cat converter (down stream)
by sampling the exhaust before and after the converter, the PCM can determine the needed mixture.
So no, you only have 2. The one in the manifold would take 5 minutes for a shop to change, the other is in the exhaust pipe, so they have jack up the car, get under it. Once in place 3 minutes to change the sensor.
O2 sensors sell for 30 to 70+ dollars depending where you buy it at. I think I read a post on the where someone found them for like 25 bucks.
So now you have 50 to 100 bucks in parts, At Most 1 hour labor.
Yea, 400 sound too much to me. For 20 bucks you can buy the book I have that will tell you how to do it. Then a couple sensors, Umm...beside.... he was wrong.
Posted 10 December 2003 - 07:42 PM
Posted 10 December 2003 - 10:22 PM
I don't know how to explain, CHECK ENGINE light problem seems to be resolved (!!!) mysteriously . This morning when I turn the engine the light came ON but it went OFF when the engine was running. I have tried around 10 times and couldn't duplicate the problem. The only thing I did was to open the hood and close.
I have to have a close watch for the problem to reappear again. In the meantime I have postponed the idea to replace the sensors and save the bucks for holidays.
Thank you my friends (MyV6Flys & Celica Kid) for your great help. Kalai.
Posted 20 December 2003 - 12:51 AM
Posted 22 December 2003 - 06:06 PM
Posted 23 December 2003 - 03:24 AM
Posted 23 December 2003 - 08:25 AM
It show the first one in the exhaust manifold. Same place Both 4 and 6 bangers. The book also talks about 1 after the cat in the exhaust pipe.
The one I think is setting the error is close and eays to get to. You will need to buy a special socket to do it. There cheaper than takes it to a garage.
Open the hood, looking down close to you, you see the exhaust manifold, there is a thing sticking out of it with a black wire like looking thing screwed into it. Look between the motor mount and the shock mount. Now looking between those two look up at the exhaust manifold. You should plainly see the O2 sensor.
Change it first then wait to see if the light comes back on.
My book may be wrong, it would not be the first car book to be wrong.
Posted 29 December 2003 - 06:57 AM
We replaced 2 oxygen sensors last week on our '98 V6, 3L Camry. The mechanic said there were 3 sensors, 2 before the catalytic converter and 1 after.
There are 3 oxygen sensors on the V-6.There are two upstream,one on each exh. manifold,and one downstream.The code your car displays is for a heated o2 sensor heater circuit malfunction(bank 1,sensor 1) which I believe is the one at the rear of the engine-upstream.(imagine that!).
The OBDII Diagnostic Trouble Code (DTC) was P0135, Bank 1 Sensor 1 (B1S1). The mechanic replaced the oxygen sensor located in the exhaust manifold in the engine compartment near the battery - ie. he only had to pop open the bonnet (hood) and spend half an hour replacing it. Unfortunately this didn't solve the problem and the check engine light reappeared for a week - I returned the vehicle 4 times for the mechanic to fix, he wasn't able to.
He finally replaced the oxygen sensor beneath the vehicle and upstream of the catalyst - Bank 2 Sensor 1 (B2S1) and the check engine light has not reappeared.
My question is: Where are the Heated Oxygen Sensors - B1S1 and B2S1 located? I discovered some information on the net that indicates B1S1 is located beneath the vehicle upstream of the catalyst not in the exhaust manifold in the engine compartment near the battery - the latter of which the mechanic claimed. I am assuming that the location of oxygen sensors are pretty standard for all models and years for Camry.
I would appreciate any information/help as I hate being taken for a ride!
Posted 30 December 2003 - 03:05 AM
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