2007-05-26 05:57:12 · 9 answers · asked by mario.kbe08 1 in Cars & Transportation ➔ Maintenance & Repairs
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.
A fouled spark plug, loose spark plug wire, a vacuum leak, dirty injectors, EGR valve, weak fuel pump, dirty fuel filter, weak ignition coil, plugged air filter, on and on, can all cause the O2 sensor to register a fault code.
Before you yank the O2 sensor and replace it, check the basics first.
2007-05-26 05:59:48 · answer #1 · answered by Mr. KnowItAll 7 · 0⤊ 3⤋
It is possible. If the sensor is running to rich or not rich enough. depending on the type of vehicle, most dealerships can hook a scan tool and monitor the 02 sensor. There more then likely will be a labor charge involved. If you have not had a tune up in quite some time you may want to consider that. Air and fuel filters
spark plugs.
2007-05-26 11:06:11 · answer #2 · answered by andrea7127 1 · 0⤊ 0⤋
If you think that you are using more gas than normal, then, yes, an oxygen sensor could be the answer. Make sure, though, that you are gauging your fuel mileage by mpg, not by how much you are spending! You may also want to check for a fuel leak somewhere that you weren't aware of.
2007-05-26 06:08:19 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Information from the O2 sensor is fed into your car computer which uses this info to adjust the air-fuel ratio. A bad sensor'll knock your mileage down at least 1-2 mpg and maybe lots more.
2007-05-26 06:08:41 · answer #4 · answered by Madmunk 6 · 0⤊ 0⤋
It is an absolute necessity to have O2 sensor to allow computer to properly adjust fuel. Without one, you'll chug along, very very slowly, getting maybe 10 mpg at best, and be a great annoyance to people behind you, as it will take you 10 minutes to reach 30 mph. So yes, it certainly does affect fuel economy. Dam right it does.
2007-05-26 06:02:12 · answer #5 · answered by MrZ 6 · 0⤊ 0⤋
Mr Know is mostly right. Although they can go bad from some of the thing he mentioned. I had 2 go bad on me once, but it was because I installed a 9 psi supercharger on a Mustang GT 5.0 and while tuning it, I had it too lean (90 psi of fuel pressure was needed, stock is 37-42) briefly, which was wayyyyy to hot for them. Obviously you will not have this same problem though.
2007-05-26 06:17:40 · answer #6 · answered by Dudeman 3 · 0⤊ 0⤋
Yes it can. When they go bad the car uses much more fuel then normal. Genrally they are not hard to change.
2007-05-26 06:00:27 · answer #7 · answered by Dan G 2 · 1⤊ 0⤋
YES BUT ONLY IF THE ONE IN UR CAR NOW IS BAD
2007-05-26 16:27:29 · answer #8 · answered by monster_garage19 1 · 0⤊ 0⤋
only if your old one is bad or slow responding.
2007-05-26 06:06:57 · answer #9 · answered by Anonymous · 0⤊ 0⤋