Oxygen Sensors

Take the Positive and Negative leads off the batterys for about 2 minutes. Than reinstall, and blamo your back to normal, I know this to work from experience.

it's located on the firewall right in back of the intake

under the hood on the passenger above the blower motor mounted to a bracket.

Their more money look at the underside of the hood and it should tell you if it's calif.

you buy the fed one the connector won't fit

Unplug the electric connecter and then get a wrench that fits it and take it out of the exhaust pipe.

Looking in under the hood, The first sensor is on the left side (pasanger side) under the spark plugs near the rear of the engine by the firewAll. It will be sticking out and looks very similar to a spark plug. It will have a wire connected to it. From the same view you can see the CAT converter. The second sensor i guess is after the CAT converter and is mounted horizontal. I recently took my montero in to auto zone for diagnostics, it gave O2 errors. Im not sure which sensor is bad or even if they are the same. If anyone has any answers or suggestions, email me at stevejlack@hotmail.com

Bank 1 refers to bank of cylinders. You probably got a triple code code that said something along the line of Bank 1 not optimal or something like that. What it means is that your first bank of cylinders running lean. This is usually caused by fuel injectors, or a leaky manifold. Give me your triple code and I will tell you more.

Possible lead wire for the fan shorting out. These problems may or may not be related. As the first contributor said, there might be a wiring problem in the fan switch to the fan motor circuit. Look for a wire rubbing on something else and look for the insulation on the wire to be damaged. Or the switch itself may be bad. I've seen them fail in the shorted (always closed) mode which will make the fan run all the time. This is probably not good on the fan motor as they are not meant to be used continuously. I can't recall right now what that switch looks like, but if you can get the wiring plug off the back of the switch and can get to the terminals that it plugs onto, you can put an ohm meter across the terminals. (do this with the engine off and stone cold) If the needle deflects, the switch is probably shorted (IE; bad) and needs to be replaced. OR, you can just try to CAREFULLY unplug the fan from the switch while the engine is running and the fan is running. If the fan stops, you can pretty much conclude the same thing...bad switch. NOTE: I don't really recommend this procedure. Fans can hurt you! Try to do this from UNDER the car if you can, so you can keep your fingers and clothing ETC away from the spinning fan. Also, this test presumes that the fan is still running all of the time. As to the Check Engine Light, be sure your fuel tank cap is real tight. If it's loose, it can cause the CEL to come on. Failing that, take the car to Auto Zone or Checker or wherever and have them put a code checker on the car's computer. They usually do this for free! It should give you some idea why the light is on.

The thermostat sensor is located on the top of the thermostat which is located directly on top of the intake, on the front of the engine, connected to your top radiator hose. Hope this helps, Brenda The thermostat sensor is located on the top of the thermostat which is located directly on top of the intake, on the front of the engine, connected to your top radiator hose. Hope this helps, Brenda

bank 1 sensor 1 2002 on toyots sienna

The Camshaft Sensor on the 5S-FE engine it located on the back of the cylinder head (facing the firewall) next to the back of the timing cover. It is fastened to the cylinder head with a 10mm bolt.

As far as I know , the ( 2 ) oxygen sensors on a 1995 Ford Explorer are

right in the outlets of the exhaust manifolds on both sides of the engine so they

are both before the catalytic converter

Bank 1 is the passenger side of the engine

Bank 2 is the drivers side of the engine

In a Ford Explorer

A 1997 Dodge with a Cummins diesel does not have an oxygen sensor.

A 1997 Dodge with a Cummins diesel does not have an oxygen sensor.

Passenger side before the catalytic converter.

Depending on the exhaust system, there will be one before and one after each catalytic converter

The solenoid pack on a Chrysler Sebring is on the bottom of the transmission. It is a bolt on unit and can be easily replaced.

This vehicle has 4 oxygen sensors. The front two are located in the rear of the engine compartment by the firewall, one on the left exhaust manifold head pipe and one on the right exhaust head pipe. The other two are under the vehicle by the catalytic converters. They screw into the exhaust system and have a plug at the end of it attached by shielded wires that should be connected.

there are two located on the y pipe prior too the pre cats and one more in the rear converter

Check to see if the engine is overheating, then check the exhaust system to see if it is clogged. If it is clogged, find out the reason why before just replacing exhaust components.

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I have seen this problem 3 times, once it was because the distributor was in wrong and the ignition timing was way off, the second time i saw the problem i found a bad Throttle Position Sensor. The third time i found that the timing chain had jumped a few teeth and thrown off the valve timing. A clogged exhaust system will not cause this problem as i have seen numerous (completely)clogged Catalytic Converters and the chief symptoms are: lack of power or no start.

An overheating motor will not cause this problem either. I've lost count of how many overheated motors I've seen and that has never caused a glowing exhaust.

I would begin by using a timing light and check ths base timing, then scan the motor to see if you have a bad Throttle Position Sensor.

There are two in the exhaust on the rear of the engine.

Not likely but possible. I would suspect a leaking vacuum hose.

There are four, two on each side, pre- and post- catalyst.

The OS sensor on a 98 Acura 3.2 TL is located in the exhaust manifold. It constantly monitors the amount of oxygen remaining in the exhaust gases.