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BMW 3-Series (E90 E92) Forum
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E90Dum and the 02 sensors
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04-15-2017, 12:30 PM | #1 |
Second Lieutenant
63
Rep 275
Posts |
E90Dum and the 02 sensors
Hey, so I'm getting 02 sensor codes, and after taking em all out and cleaning em, the codes went away. A week later they're back, so I ordered the cheapest sensors from ebay (I tell you this on purpose) and got to work. Last night I replaced all of them, but the sensors that came after the cats didn't come labeled with part numbers, so I guessed the correct header when I put em in. The top 2 (pre cat i think thryre called. I have headers) had the part numbers labeled so I think they're correct. I start the car and it stutters, and then starts to literally pop, so I shut it off(and go to bed!). Today I tried to switch the 02 sensors at the bottom from the electronic cable end, and after a half hour of cursing found out they can only be plugged in one way lol; so I flipped the after cat sensors, start the car, and get the popping again.
I went to flip the pre cat 02 sensors, but I burned my hand so bad I figured I'd post here while waiting for the headers to cool down The only code I get is for cylinder 1 misfire I got a code for that (but no signs of problems. OR POPPING) and because I changed the spark plugs 15k miles ago I figured it was the injector, so I replaced that a few weeks ago. I checked connections and I think it's fine Ima go eat some damn lunch
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09-22-2017, 12:23 PM | #3 |
Second Lieutenant
63
Rep 275
Posts |
Hey man do you know anything about the thing that heats up 02 sensors? Like the 02 heater wire/core something along those lines? I'm having trouble with that
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