[e90dum]

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(not the same one) (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.

Popping happens after 5-9 secs of idle


Ima go eat some damn lunch
Edit QUOTE

[e90dum]

I flipped the CABLE part of the post cat 02 sensors and that seems to resolve the issue. Lol, looks like I don't know how to read

[STR8-6IX]

Originally Posted by e90dum

I flipped the CABLE part of the post cat 02 sensors and that seems to resolve the issue. Lol, looks like I don't know how to read

issues with o2 sensor usually signify an issue that will ruin the new sensors as well. a rich AFR/ oil consumption will cause the o2 sensors to fail. are you getting poor fuel economy or consuming oil?

[kkasson]

As far as I know the bank 1 and bank 2 sensors are the same, the only difference is the length and color of the wiring. In any event, the post-cat sensors are only used for monitoring and should have no effect on how the car runs. The pre-cat sensors will affect how the car runs, but only after it's warmed up. I think your issue is elsewhere.

[e90dum]

Originally Posted by kkasson

As far as I know the bank 1 and bank 2 sensors are the same, the only difference is the length and color of the wiring. In any event, the post-cat sensors are only used for monitoring and should have no effect on how the car runs. The pre-cat sensors will affect how the car runs, but only after it's warmed up. I think your issue is elsewhere.

Yep, flipping the front 02 sensors did the trick.

Originally Posted by STR8-6IX

issues with o2 sensor usually signify an issue that will ruin the new sensors as well. a rich AFR/ oil consumption will cause the o2 sensors to fail. are you getting poor fuel economy or consuming oil?

An ill let ya know if they break again... lol

My mpg was aight while i had the codes for the sensors on. I have an oil pan gasket leak and a throttle body gasket im ignoring until i get the time to fix, but otherwise no. I changed my oil not too long ago and tightned the bolts while i was there and actually havent leaked any oil so far, but i know thatll change soon