Oxygen Sensors

Bank 1 is the same side as cylinder #1. Bank 2 would be the other side.

tell me where is the egr valve located please

the egr valve is usually located on the top right of the intake manifold on top of the engine so if your facing the engine, look down to your right

back of the intake manifold ...back of the engine center top

Bank 2 is the drivers side of the engine on your 1999 Mercury Marquis

Sensor 1 is before the catalytic converter ( upstream )

Sensor 2 is after the catalytic converter ( downstream )

2, one before the catalytic converter and another after the catalytic converter.

First you need to know which one you are looking for. Your car has more than one oxygen sensor. Usually you'll have one in front of and one in back of the catalytic convertor and there may be one closer to the exhaust manifold as well.

I'm not a mechanic / technician but on a 1999 Ford Explorer 4.0 L Over Head

Valve V6 engine , bank 1 is the passenger side of the engine and I BELIEVE

the oxygen sensor is in the outlet of the exhaust manifold

How do you change oxygen sensor in 1992 Toyota corolla? Is there a model engine 4A-FE without a oxygen sensor?

They just screw into the exhaust pipe. There are clips that keep the electrical connectors in place, you will have to pry those out, but it should not be a problem. Then all you do is screw the new one back in, and press the clip back into the hole for the elec. connection

Well, i am in the process of changing the sensor as we speak...and i am dirty and hot (yuma, september, over 100 degrees Fahrenheit, shoot me).

I bought my new sensor from Autozone where they were about 50-55 dollars. A sensor connected to a cable with 4 loose wires and a few more parts which would complete the plug (which you build yourself).

My cables from my sensor lead up to a connector which had a perfect fitting plug on it...which was different that the new one though...so replacement in unavoidable.

I just can't get to the rest of the plug to fit the new connectors on. there is some sort of cover (metal, sharp edges) covering the cables. So, i am now off to remove such plate and get to the cable to place new connectors...

Don't do it yourself but pay a mechanic 40 bucks...that's what it's worth.

First guy was right, they just screw in and out. Go back to autozone or checkerauto and you can rent an "oxygen sensor" wrench/ratchet kit. (once you return the kit autozone will refund all your rent money). The kit comes with a dozen different sized and shaped sockets that will fit over your oxygen sensor to help pull them out easy. (my oxygen sensors were covered with dirt that I had to scrape off first, because I go off roading a lot). Make sure you buy the oxygen sensors that already come with the attachment clip for the wires (this will save you lots of time and frustrations) they're only a few dollars more. Before you screw the new oxygen sensor back into place, you should probably put some RTV sealant around the washer. You can get that at autozone too. It comes in a tube for a few dollars. Make sure you get the RTV sealant marked "sensor safe" or "wont harm oxygen sensors" and also that it has a high heat tolerance.

it will be on the exhaust manifold towards the back by the fire wall or just below the doenut gasket. it will be the first 02 sensor in the exhaust system going from engine to the tail pipe. good luck NEUTZ

See whether the truck has an EGR valve and replace it if it has one. If you're not sure whether it has one, call AutoZone and ask for one. If they don't have one for that truck, then it doesn't have one. In that case, check the timing and adjust the carb.

there are alot of sensors which one are you looking for

The upstream O2 sensor on a 2001 Chevy Metro is located in the exhaust system, specifically before the catalytic converter. It is typically mounted on the exhaust manifold or the front pipe, where it can measure the oxygen content in the exhaust gases coming directly from the engine. To access it, you may need to lift the vehicle and potentially remove heat shields or other components.

In a 1998 Chevrolet Cheyenne 1500 pickup with a 6-cylinder Vortec engine, the oxygen sensors are typically located in two places: one is positioned in the exhaust manifold, and the other is located downstream in the exhaust system, before the catalytic converter. The upstream sensor monitors the air-fuel mixture, while the downstream sensor checks the efficiency of the catalytic converter. Accessing them may require lifting the vehicle for better visibility.

On a Lexus RX 300, the oxygen sensor is typically located in the exhaust system. There are usually two sensors: one before the catalytic converter (upstream) and one after it (downstream). The upstream sensor is generally found on the exhaust manifold or in the exhaust pipe close to the engine, while the downstream sensor is located after the catalytic converter. Always consult the vehicle's service manual for precise locations and specifications.

To replace the O2 sensor in a 1999 Dodge Intrepid, first, ensure the vehicle is cool and disconnect the negative battery cable. Locate the O2 sensor, which is typically found in the exhaust system, either upstream (before the catalytic converter) or downstream (after the catalytic converter). Use an O2 sensor socket or a wrench to unscrew the old sensor, then install the new sensor by threading it in and tightening it securely. Finally, reconnect the battery and clear any diagnostic trouble codes if necessary.

To change the O2 sensor on a 2004 Mazda RX-8, first ensure the engine is cool and disconnect the negative battery terminal. Locate the O2 sensor, which is typically found on the exhaust manifold or downstream in the exhaust system. Use a wrench or O2 sensor socket to unscrew the old sensor, then install the new sensor by threading it in and tightening it securely. Finally, reconnect the battery and clear any diagnostic trouble codes if necessary.

The number of catalytic converters in a Mitsubishi vehicle varies depending on the model and engine configuration. Generally, most vehicles have one or two catalytic converters, but larger or more complex models may have more. To get specific information, it's best to refer to the owner's manual or technical specifications for a particular Mitsubishi vehicle.