A LITTLE HELP HERE GUYS!!! plz...
A LITTLE HELP HERE GUYS!!! plz... ok so i just blew my O2 sensors!! i have to wait till the first to replace them and wanted to know if its bad to drive with them all messed up? alos was wondering if anyone knows if the cats are covered under a federal warrenty if your car is under a certain milage? my car has 73K and i need to change them out so if anyone knows anything I wud greatly appreciate it! and no i will not delete them!!!
Last edited by cwdub4; Mar 23, 2011 at 10:11 PM.
Wich ones? The front or the rears? If the rears went it will throw a cat code. The front ones will make the car run bad it will drink a ton of gas. Use a thermal gun to check if the cat is bad.
The exhaust enternig the cat shoud be hotter then the exit.
I think the rule of thumbs is 100* differance.
The exhaust enternig the cat shoud be hotter then the exit.
I think the rule of thumbs is 100* differance.
when the O2's go bad the pcm goes into a default mode and just tries to guess a/f ratio. so yea, as mentioned it's gonna use a lot of gas and possibly run like crap.
just replace em both soon.
just replace em both soon.
thanks guys for the advice, but just wanted to say that today my service engine light went away and hasn't came back on...i havent changed them out but i will asap!!
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once you change them both out, disconnect your battery for about an hour and then re-connect and drive around (normal driving) for about 20 mins so the computer will re-learn everything.
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One thing i suggest doing, try pulling all 4 O2 sensors out of the exhaust and clean them I do it at every oil change. Make sure they are cool and spray inside them with throttlebody cleaner. Then shake the $hit out of them. You will see a ton of carb come out of the probe.
Unless it's an auto, there is no real "re-learn" period with the LS cars. The computer figures stuff out within a couple seconds. But the o2 warm up time is a different subject. Heated O2's. No idea on how fast they get up to temp.
Gotcha....guess I'm just used to OBD I Ford stuff, lol
