Oxygen Sensors

You need to be more specific. Like what year and what engine. Either a base SOHC (97-99), a NA DOHC or a twin turbo (91-99). The DOHC models have a front and rear sensor on each manifold. The rear is s pain in the @$$ to get off. The SOHC has one sensor located under the car near the flex pipe in the front. It runs into the car up into the shifter area. Hope that helps. Be careful with the install and make sure the wires aren't touching any metal when you plug it in. I made that mistake and when I started my car I blew my ECI fuse.

follow the battery negative cable to it's other end and, voila, there is your ground.

you have to pull the entire toliet up. Then hopefully the bolts are all that are rusted. the metal (or plastic) flange the toliet carriage head style bolts run into, may be bad also. If this is the case, you will need a plumber, or elevate yourself to a higher degree of knowledge and skill to replace the flange. if just the bolts are bad, you can easily purchase new brass bolts made for toliet hold down, for about $2.00. Some older homes do not have the flange, and the bolts actually have wood screw threads on opposite end. these can be ourcahsed also, and the new bolts just run into the wood floor. However, all older home wood floors with this type of bolts i have wiorked on, the floor is so rotten, ity has to be replaced also. once again, if this is the case, a rotten floor, you need a plumber (carpenter) or have to elevate your knowledge and skill levet to tackle this isssue. if you master the toliet pull alone, make sure to always use a new wax seal gasket, they csot between $1.00 and $5.00. using the old wax gasket will only bring you leaks when you flush.

There are two, one on the header and the other is located underneath the car just after the catalytic converter.

You may have two- one in the exhaust manifold/downpipe, and the other just past the catalytic converter.

P304 means misfire on number four cylinder. Can be bad spark plug ,bad plug wire,or bad fuel injector. could also be loose plug wire or injector wire. How many miles since tune-up ?

73 percent

Edit: This answer can't possibly be accurate as air on earth is only 20% oxygen and is at it's highest level ever. Further more the amount of oxygen needed depends on what your trying to burn.

Keep in mind that oxygen is NOT fuel for fire. Fire IS the even of oxygen combining with other materials. Fire is the effect of energy being released at the time of molecular fusion.

Generally though, if at a high enough altitude where oxygen drops below 15% most things will not burn.

The oxygen sensor is in the exhaust. It senses unburned oxygen to tell the computer if combustion is complete. The mass airflow sensor is in front of the intake. It measures the volume of incoming air to supply the right amount of fuel

There are two O2 sensors in the exhaust system (4cyl). One is the a/f sensor the second is the downstream or heated sensor. The first measures air/fuel metering; the second measures the efficiency of the catalytic converter. The MAF sensor measures the Mass Air Flow, and yes it is at the front of the intake between the engine air filter and the throttle plate.

Actually there are many ways to tell if you have a bad cat.

.A rotten egg smell coming out of the exaust

.Hesitation and/or bucketing when acceleration takes places

.Increase in engine running temp

.A ratteling in the muffler as car idles

.Car dying sparatically due to engine backpressure

.Difference in temperature from the back of the converter to the front due to clogging

Your in luck...that should be the oxygen sensor in the exhaust manifold at the front of the engine compartment. Bank 2 is the bank of cylinders that does NOT contain the #1 cylinder. That bank is bank 1. Sensor 1 is the oxygen sensor upstream of the catalytic converter, and sensor 2 is the one after the cat.

do you know what it looks like you can go to www.autozone.com and look at it

where is the bank 1/sensor 2 O2 sensor on a dodge caravan...to the rear of the catalitic converter or to the engine (front) side of the converter?

You didn't say if it was a 6 cylinder or an 8 cylinder but it doesn't really matter because all the O2 sensors are located in the exhaust sytem and can be seen and replaced from under the vehicle.

You need to get a die that fits. Probably cheaper to buy the sensor

That depends on the engine and the fuel you've used. If the engine starts burning oil a catalytic converter can fail rapidly. Some fuel additives can also cause a catalytic converter to fail prematurely.

Your valve timing is off

The o2 sensor is not reading properly causing the system to go very lean.

Over 210

You can not reset your oxygen sensors. You can only replace them. To reset the check engine light you will have to get that done by a repair shop with a computor. If replacing the sensors does not repair the problem then check for a vacuum leak.

try changing the cat. they plug up causing motor not to breath under thottle but will idle great....

the best thing you could do is sell that mounaineer and get a new car, problem solved, you're welcome.

I just purchased one for my 1997 merc mountaineer, i was up under it and found that the transmission cross member makes it very hard to get to, i may have to remove the cross member and support the tranny with hyd jack while i replace it, I allready know that you will have to modify a wrench, ie: cut off or shorten so as to be able to tighten the plug. This is where one of those times where the metric matches the American size. You can use a 7/8" end wrench or a metric size which ever you prefer. If I find an easier way I will let you know. I wish you well in your endeavor.

check the cad. converter ======================== That's normal if you dive the car "HARD" .. Turbo kicks in and lots of air/fuel => exhaust then too hot

engine will cut out at any time. will usually start again. but will cut out again when it wants to

Where are the Bank 1 Sensor 1 oxygen sensor on a 1998 ford explorer?