check engine on in a mustang is a o2 sensor?

Question

Ok I have a mustang 2000 and I have the check engine on,I already check and is one of the sensors so I'm going to change it, but I want to know if after I change the sensor the check engine will turn off by it self or I have to reset the computer or do something like this

Answer 1

go to an auto zone and ask them what sensor is the one you have bad they even will tell you where is located 2 are easy to find but the ones in the back sometimes are hard to reach they are like 60 each but if is your o2 sensor you will save a lot more in gas if you know what I mean I get a bad sensor like 1 year ago and man my car eat a full tank in one week so just change the o2 sensor you don't have to reset the comp but if you want you can just unplug the (-)pole in the battery this will do it.

Answer 2

O2 Sensor? Probably NOT the problem.

People like to blame the O2 sensor for the problem because that's where the computer fault appears.

However, nine times out of ten, it's not faulty. It is simply reading a condition in the engine that is causing it to send a signal to the computer that there is a fault in the exhaust emissions mixture.

In a V-8 engine if you have a fouled spark plug, the air/fuel won't ignite and cause a rich condition in the exhaust which the O2 sensor reads.

So, there's 8 possible problems.

Loose spark plug wire 8 more possible problems.

Faulty injector? 8 more possible problems.

Vacuum leak? 8 more.



So, there's 36 possible problems that could cause the O2 sensor to trip the computer. Not to mention fuel supply issues, timing, EGR, bad gas, rotor, distributor cap,



Before you yank the O2 sensor and replace it, check the basics first. Otherwise, you could have wasted time and money on the result, not the cause.



There are many components that work together in the engine to maintain optimal engine performance and economy.

A service engine soon, or check engine light indicates that there is a sensor that is reading a condition that is "out of range".

Simply resetting the light does not solve the initial cause of the problem.

Replacing a number of parts trying to troubleshoot the problem in the hopes of getting the light to stay off is a tremendous waste of time and money.

The simplest, and most economical way to alleviate your issue, is to have the computer codes checked by a reputable shop to determine what caused the computer to signal you to begin with.



That being said, if per-chance you feel the need to reset the light in the hopes that it was a "glitch" of some kind, you could disconnect the negative battery terminal for a couple of minutes to clear the check engine light.

Answer 3

Mr. KnowItAll is thinking of pre-1996 cars. With OBD II, 1996+ cars should tell you very accurately where the problem is. It can detect intermittent misfires and which cylinder exactly. If it's not blowing a code for that, it's probably not that. Don't bother replacing plugs and wires and injectors etc. unless all else fails.



O2 sensors are a common failure item. They used to say "replace them every 60,000 miles", now they say replace them on failure. I'd suggest changing both O2 sensors as a pair. I'm not sure if you need a scan tool to reset codes. You will need to drive it around in a variety of driving patterns so the computer can "test" the repair.

Answer 4

Yes it can be the o2 sensor. After u change the sensor, the easiest way to reset it would be. Disconnect the negative on battery for about 1 minute. cel(check engine light) should go away. then just let your car idle for couple of minutes.

Answer 5

After you replace the O2 sensor (if that's the code that the code scanner is telling you), you have to reset the computer, and hope that you do not have any more errors. not sure how many O2 sensors are on your vehicle, most systems i have run across has 2 O2 sensors.

Answer 6

i have had that take position with my automobile. On 2 separate activities, at the same time as the gasoline cap wasn't tightened on sufficiently and the gasoline were given low the verify engine gentle got here on. After 0.5-filling the tank with gasoline and making certain the gasoline cap became tightened yet strong - my cap makes a cracking sound that sounds alarming notwithstanding it ought to be twisted extra with that sound to be guard. It took about an afternoon earlier the gentle went out. it would properly be the gasoline cap. The code that mine got here up as became O2 sensors, which i ought to have replaced had I no longer tried the gasoline cap difficulty first.

Answer 7

go to autozone, advance autoparts, or oreillys autoparts etc all do free diagnostic checks