DIY BMW E46 Pre Cat Oxygen Sensor
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Uploader Comments (XionUnjust)
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All Comments (54)
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Did you say "Pre cat O2 spark plugs"? Nice :D
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sir i have 318i 2004, my mechanic told me bank 1 sensor 1.. please tell me where it is located as that man said it's near exhasut pipe and here all scenario's kinda different..
thanks
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how much did the sensor cost?
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Anyway the site is autoparts online canada (one word) dot com and if you go select bmw 325i and year as 2004, then select 325i sedan, then scroll down to the fuel injection category, those are the sensors I plan on picking up.
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Ok thanks, and how to know what sensor it is, if the scanner only tells me bank 1 and bank 2? doesnt tell me, bank 1 sensor 2, do i have to change them all?? thanks again
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Hello. Getting ready to replace both my pre-cat o2 sensors. Question. Will the check engine light remove automatically once this is done?
armandoOSU 5 months ago
@armandoOSU Yes it will, but probably after some miles are put on or if you have a code reader.
XionUnjust 5 months ago
Hey,
I watched your video on changing of the O2 sensor - very good. But I need a recommendation from you.
Is it a good idea to replace all O2 sensors at the same time?
I was getting an error posting a link to the sensors that I'm going to get, but I'm guessing that I need two of each. Any additional information would be greatly appreciated. Thanks!
mitchrz1 6 months ago
@mitchrz1 Thank you.
When I got my first o2 code it was for the most front one, then a few months later the second one came. I would just replace all at once (not all four, but the same side either pre or post cat)
XionUnjust 6 months ago
So if your looking at the car from the front, the two that are in in the left are pre-cat, sensor 1 is the front one, and sensor 2 is close to the firewall, post-cat are to the right and so on...?
oscarv362370 7 months ago
@oscarv362370 Correct
XionUnjust 7 months ago