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Oxygen Sensors

Also called as the lambda sensor, an oxygen sensor measures the proportion of oxygen in liquid or gas. Scientists use this electronic device in measuring respiration or production of oxygen. Oxygen sensors are also used in automobiles.

3,729 Questions

How can you change Volvo s70 o2 sensor?

All this work is done from under the car. There are two sensors on the S70. One is called the upstream( located higher up on the exhaust manifold) and the other would be the downstream. They are located on the exhaust pipe prior to the cat. converter. Unscrew the sensor (need to borrow a special tool) and follow the wire up around the engine to a small connector. Be sure to use anti-seize grease around the threads of the new O2 sensor(s). rcal13a@yahoo.com

You have a 2000 s-10 blazer with a great loss of power you'r confused on what might be causing it The coded were read and stated that bank 1 and 2 o2 sensors are bad can this be all four or a fuelpump?

Your catalytic converter is probably clogged. Disconnect your exhaust just before the catalytic converter and drive then. If it runs better, you'll have to get a new converter. Or just ram out the same one. Try this before changing the oxygen sensors.

Where are the oxygen sensors on the 98 Pontiac Sunfire?

On the 2.4 L the up stream O2 sensor is located in the exhaust manifold between the engine and the firewall. It has a single wire coming out of it. I believe it will be a purple wire. The down stream, heated O2 sesor is located under the car after the catalytic converter in the ehaust piping. It will have four wires coming from it.

Where is the rear oxygen sensor located on a Pontiac Grand Am?

the rear oxygen sensor is located under the car just in front of the catalitic converter it looks like a wire hooked onto a spark plug in the middle of the exhaust pipe

What typically causes high CO readings on a 91 Honda prelude SI?

High HC is unburnt fuel. Check the O2 sensors, Plugs, wires,cap ,rotor, timing. If it failed CO & Nox also check the converter. Possible that it may not have been properly warmed up before testing.

I would recommend looking at the o2 sensor (you only have one on your car) and the coolant temp sensor.

Where is the oxygen sensor on a 1994 Jeep Cherokee?

It is screwed into the exhaust pipe just before the catalytic converter.

It is screwed into the exhaust pipe just before the catalytic converter.

What would cause the check engine light on a 1999 Chevy Prism comes on only after turning on air condition?

Apparently, turning on the air conditioning is triggering the computer to send a DTC (diagnostic trouble code) to the check engine light. It would be in your best interest to have the OBDII connector scanned and retrieve the trouble code(s) to find what is causing the check engine light to come on.

How many oxygen sensors does a 1992 Chevrolet Cavalier have?

It only has one. It is located in the exaust manifold in front of the engine. Four cylinder that is. If by chance you have a V6, then it would have two, both located in the exhaust maifolds, on the front, and back of the engine.

Where is oxygen sensor bank 2 sensor 2 on ford e350?

On a ford e350, the bank two sensor two is on the drivers side. The sensor is the one behind the catalytic converter.

Where is the oxygen sensor on a 2004 Honda accord?

The oxygen sensor on a 2004 Honda Accord is found on the exhaust system. They are placed close to the catalytic converter so the sensors can properly read the exhaust flow.

Where is the O2 sensor located on a 1987 Monte Carlo ls 4.3 engine?

you may have 2. one will be before the catalytic converter on your exhaust pipe. if there are 2 then one will be located after your catalyltic converter.

What is a sensor?

sensor is basically a device which detects and converts your signal of interest into a measurable or observable quantity (mostly an electrical signal). Say for example, a pressure sensor detects pressure and converts it into an electrical output which can be further processed for actuation or to be displayed.

What would cause a rich reading on the O2 sensor 93 Saturn SL2 Have replaced sensor reading persists?

Have you replaced your air filter lately? If not, try that, reset the computer by unplugging the battery and see if it clears the code.

Where is bank 2 censor 1 on your Chevy s10 2004?

Assuming this is a 4.3L engine, bank 2 sensor 1 would be located in the exhaust pipe immediately following the passenger side exhaust manifold.

How many oxygen sensors in a 95 Ford Explorer?

On a 1995 Ford Explorer :

There are ( 2 ) oxygen sensors

( I believe there is one sensor in the outlet of each exhaust manifold )