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Car Forum / Toyota / Camry / April 2007How many O2 Sensor does 96 camry have?
I own a 96 Toyota Camry. I am wondering how many O2 Sensor does this car have? When I open the hood, I can see two sensor bolted into the exhaust. But I read the manuel and it says that there is one before and after the catalytic converter. Now I am very confused. Any help would be much appreciated. > I own a 96 Toyota Camry. I am wondering how many O2 Sensor does this car have? == 2 One on either side of the TWC (three way converter) -- it's very close to the exhaust manifold. You're probably thinking about the catalytic converter under the car. >> I own a 96 Toyota Camry. I am wondering how many O2 Sensor does this car have? >== >2 >One on either side of the TWC (three way converter) -- it's very close >to the exhaust manifold. >You're probably thinking about the catalytic converter under the car. First I would like to say thank you Daniel for replying to my post. Daniel, you mean there is only 2? Located right in front of me when I open the hood door? Are you saying that the manuel is wrong and that there are no O2 sensor located near the catalytic converter (which is located under the car)? Sorry to annoy you with all these question. I just want to be sure I know what you talking about. There should be one sensor before the exhaust goes into the converter and one after the converter. The one after the converter will be under the car. Scott >There should be one sensor before the exhaust goes into the converter and >one after the converter. The one after the converter will be under the >car. Scott But I see 2 sensors before the converter. Again my car is a 1996 Toyota Camry DX 4 cylinder with a 5SFE engine. Manuel transmission. > >There should be one sensor before the exhaust goes into the converter and > >one after the converter. The one after the converter will be under the > >car. Scott > > But I see 2 sensors before the converter. === That chunky short thing right after the exhaust manifold _is_ the converter. I have nearly the same model. You see two oxygen sensors right in front, but one is actually after that converter. Toyota calls it a three way converter and the second O2 sensor checks that the converter is operating properly. Check the Factory service manual for an exploded diagram and more information. See: http://oregonstate.edu/~tongt/camry/index.html >> >There should be one sensor before the exhaust goes into the converter and >> >one after the converter. The one after the converter will be under the [quoted text clipped - 11 lines] >See: >http://oregonstate.edu/~tongt/camry/index.html Thanks for the link Daniel. That explains alot. I finally understand now. Thanks for all the help guys! =D. Off I go to put in new O2 sensors! > >> >There should be one sensor before the exhaust goes into the converter and > >> >one after the converter. The one after the converter will be under the [quoted text clipped - 19 lines] > > - Show quoted text - like everything ,o2 sensors fail for a reason.THIS is the place to start,if in fact they have failed. dave On Apr 19, 1:44 am, videokid...@hotmail.com wrote: > > >> >There should be one sensor before the exhaust goes into the converter and > > >> >one after the converter. The one after the converter will be under the [quoted text clipped - 25 lines] > > - Show quoted text - They don't typically fail just from old age? What typically causes an oxygen sensor to fail? Like you said... you learn something new every day. Thanks, Michael > On Apr 19, 1:44 am, videokid...@hotmail.com wrote: > [quoted text clipped - 39 lines] > > - Show quoted text - the most common failure we see is cat converter failure/removal,or an introduced toxic element eg acidic based gasket cements/silicone compounds. Dave > On Apr 19, 1:44 am, videokid...@hotmail.com wrote: > [quoted text clipped - 39 lines] > > - Show quoted text - The most comon cause of failure without a doubt is failed cat converter,this can be for many reasons but the usual to is exessive ritch/lean mixtures caused by poor tune(back to the great air cleaner debate)or some genious "gutting" the cat.The second would be use of acidic based gasket compounds in an area that will allow fume contamination of the o2 sensor.eg exhaust manifold gaskets / egr gaskets etc. Age failure certainly does happen , but is not as common. o2 sensors are quite often diagnosed incorectly as there are a number of conditions that will cause a similar symptom. They can be tested using a multie meter but by far the most accurate way is using a lab scope or a data scanner. Care MUST be taken to ensure that the cause of failure is determined before replacement. We recently had a backyarder replace 4 one after the other (At a cost of AUD $120 each) ,the cause , a failed cat ,because his "mate" told him that gutting the cat would give him more power????????classic IDIOT. hmmm I wonder if curiousken used k&n on his toyota. >hmmm I wonder if curiousken used k&n on his toyota. Well...I'm currently using a K&N air filter. Is this a bad choice? > >hmmm I wonder if curiousken used k&n on his toyota. > > Well...I'm currently using a K&N air filter. Is this a bad choice? > > -- > Message posted viahttp://www.carkb.com Find out. Remove the K&N, put in the original air filter, drive it for awhile. Do your symptoms go away? What *were* your symptoms, which caused you to think the O2 sensors died? If you have a check engine light, try disconnecting a battery terminal for a couple of minutes to clear the light. Michael >> >hmmm I wonder if curiousken used k&n on his toyota. >> [quoted text clipped - 13 lines] > >Michael My O2 wasn't literally dead and thats why my check engine light never came on. What I do notice was that my mileage has suffered alot during the past month. I used to get at least 400 miles on a full tank, but recently I noticed that I only got around 300 miles. So I took a wild guess that it is the O2 sensor. Putting in the original air filter that came with the car didn't change anything, so I guess nothing is wrong with the K&N air filter. > mrdarr...@gmail.com wrote: > >> >hmmm I wonder if curiousken used k&n on his toyota. [quoted text clipped - 24 lines] > -- > Message posted viahttp://www.carkb.com Hoo boy... ok.. how many miles? Have you serviced lately: differential fluid tranny fluid spark plugs PCV valve ? Sudden drop in mpg... anyone have any input on this? On Apr 21, 4:57 pm, mrdarr...@gmail.com wrote: > > mrdarr...@gmail.com wrote: > > >> >hmmm I wonder if curiousken used k&n on his toyota. [quoted text clipped - 38 lines] > > - Show quoted text - Trans /final drive oil- why???? plugs -yeah ok a very big maybe PCV -not lets start at the basics shall we? Have the driving conditions changed? 1)tyre pressures.....always first place to start 2)injector pulse rate eg is the vehicle running ritch?(basic test) 3)is the air flow meter functioning correctly?(basic test) 4)has anyone tried to "tune" the car? if so get it done correctly by a quallified mechanic. 5)have the octane levels in your chosen fuel changed? WILD GUESS is right, if an o2 sensor isnt faulty why would you replace it? An o2 sensor WILL NOT nessasarily bring on the CEL , in fact usually it wont. ive posted the FACTS about air cleaners , not going through it again, but I will say that a consumption test should be conducted over at least 1000 miles and should be controlled environment tests.If changing from a high flow to a OEM air cleaner made no difference , I strongly suspect you have control issues with your testing. Disconecting the battery (for a and by the corect sequence)will extinguish the CEL but will not wipe it from the prom memory.to do this the ECM needs to be flashed. And re heated or 3/4 wire sensors , they dont use an element as such, and this is a rare cause of failure. dave >On Apr 21, 4:57 pm, mrdarr...@gmail.com wrote: > [quoted text clipped - 31 lines] >and this is a rare cause of failure. >dave WHOA! Ok you guys are probably right. Its probably nothing wrong with my O2 sensors. I noticed recently that a large amount of water came out of the exhaust pipe when I reeve the engine. Maybe the water went into the engine and hinder performance? > videokid...@hotmail.com wrote: > >On Apr 21, 4:57 pm, mrdarr...@gmail.com wrote: [quoted text clipped - 37 lines] > exhaust pipe when I reeve the engine. Maybe the water went into the engine > and hinder performance? Water came out when the engine was cold, or when warm? On Apr 23, 4:00 am, mrdarr...@gmail.com wrote: > > videokid...@hotmail.com wrote: > > >On Apr 21, 4:57 pm, mrdarr...@gmail.com wrote: [quoted text clipped - 41 lines] > > - Show quoted text - Is the vehicle using coolant.......thats where i would start..... condensation is not uncommon and completley harmless. dave I'm now confused, so the problem is poor mpg and not O2 sensors and you notice water coming out of your exhaust pipes. > I'm now confused, so the problem is poor mpg and not O2 sensors and > you notice water coming out of your exhaust pipes. CONFUSED , your at the right site...... >I'm now confused, so the problem is poor mpg and not O2 sensors and >you notice water coming out of your exhaust pipes. At first I "thought" my O2 sensor is bad because my mileage has suffered. But recently I noticed that water came out of the exhaust pipe (the end pipe coming out of the muffler). I talked to a mechanic and they told me that when water goes in it makes it harder for the piston to move even when there are enough gas/air mixture. I fixed the gasket and now my engine is running smooth again. And I also got my torque back. No more water came out. But need to wait until the gas tank is empty to see is mileage improved. >> videokid...@hotmail.com wrote: >> >On Apr 21, 4:57 pm, mrdarr...@gmail.com wrote: [quoted text clipped - 3 lines] > >Water came out when the engine was cold, or when warm? Cold and warm and when it is hot. > mrdarr...@gmail.com wrote: > >> videokid...@hotmail.com wrote: [quoted text clipped - 9 lines] > -- > Message posted via CarKB.comhttp://www.carkb.com/Uwe/Forums.aspx/toyota-camry/200704/1 Well ok... how much water? Are we talking 1/4 cup per minute here? Like Dave said... how's the coolant usage looking? Take a look at the coolant bottle. Is it full? Also, when the car is stone-cold, remove the radiator cap and take a peek inside. What color is it? Does it look oily? (And remember to put the radiator cap back on properly when done..!!!!) M >> mrdarr...@gmail.com wrote: >> >> videokid...@hotmail.com wrote: [quoted text clipped - 11 lines] > >M It was more like half a gallon each 30 minutes (my estimation) because everytime I check the radiator after a 30 minutes drive; it wasn't full. And when I fill it back up I noticed that it took about half a gallon of premixed coolant. And yes they did looks a little oily. But the problem has been fixed now. And new coolant has been replaced. On Apr 19, 6:01 pm, videokid...@hotmail.com wrote: > > On Apr 19, 1:44 am, videokid...@hotmail.com wrote: > [quoted text clipped - 58 lines] > him that gutting the cat would give him more power????????classic > IDIOT. 4 cats, eh? I would have stopped after two, at least... ;-) Thanks for the summary Michael > On Apr 19, 6:01 pm, videokid...@hotmail.com wrote: > [quoted text clipped - 68 lines] > > - Show quoted text - NO ,4 O2 sensors > like everything ,o2 sensors fail for a reason.THIS is the place to > start,if in fact they have failed. > dave === That's what I always thought - 'til now, hadn't found too many who agree. At 160,000 miles I keep putting the meter (don't have a scope) on the OX1 terminal on the DLC, and it performs as the FSM says it should. Mileage is constant. See no reason to change it. Especially when biannual smog tests show 0.0 to 0.1% O2 content. I would suspect progressive carbon fouling as a symptom most often attibuted to age. AFAIK, the zirconia in the O2 sensor is the same material as in the cubic zirconia simulated diamond - a hard, durable material. One other common failure mode on heated sensors (mine's unheated) would be the heater filament. hi what does it mean when you read that a toyota camry runs really great but needs clutch work;is this major? is it all a hidden cost (s) tia ~v~ |
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