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| quote: | Originally posted by lücid
wtf?! what kind of car do you drive? |
Lexus LS 400
| quote: | Originally posted by kid nyc
o2 sensor's are a mechanic's greatest line, that means they are pulling a fast one over your head. You probably got a CEL (check engine light) on your dash and took it in to get it checked out. An o2 sensor usually resides near our Catalytic Converter, it measure the o2 coming out of your engine and then throws a light if there is an irregularity in o2 (rich or lean). Well to get o2, it's a combination of gas and air (Air/Fuel Ratio), alot of times there are small things that throw a CEL for o2, internal combustion when you step on it/floor it your car runs rich with gas and lean with air throwing a CEL. Most if not all the time an o2 sensor can throw a CEL for really stupid things, even a rock knocking the cat can throw a CEL for o2.
He might charge you for a replacement o2 sensor and really just reset your CEL, go under your car and clean the sensor casing a bit to make it seem like its brand new. So essentially he didn't replace anything, just reset your CEL so it doesn't appear and wait it out. If you come back within a given period of time with an o2 sensor issue or another CEL, he'll probably then go ahead and change it for you without any cost as if he's warranting on labor.
There are plenty of things that can affect an o2 sensor from throwing a CEL, under carriage knocking, internal combustion, bad gas, unclean air filter, just a bunch of things. Hope I educated you on what I know at least, and i'm pretty sure i didn't touch upon all the specifics here (someone else can do it) and i might not even be fully correct, just that my knowledge of cars stems back a few years since I haven't owned a vehicle in over 4 years (I moved into Manhattan and take the train every day =P).
Good luck =) |
I am very aware of the situation. What happened was the front one had gone bad, and attempting to clean them to get them to work 2 weeks ago.. I f'de up the second. In the lex engine bay, things are not easy at all to get to, and there is almost too much to take apart. Parts alone are about 150 each. (Cheapest online I found was 139) Labor is 115 an hour +taxes and such. Ran me actually about 668 (close enough to 7 bills). The sensors were bad because my gas milage went to pot. I used to average 18city/24HW and it went down about 10 and 13. My car was running way to rich... and you could even see that in the oil. It was a thick slutty black even though the oil had been changed about 500 miles back.
To end, I agree with you 100% of the way on all of what you said. I knew my problems and everything is now back to norm (not just untripping the CEL light).
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