Check engine light after cabin air filter

[Itsdanieel]

Hey guys, so few weeks ago i changed my cabin air filter. I didn't remove the battery terminal when unplugging the fuses (stupid me) anyway after i plugged everything back in the check engine light camr on, went to the mechanic and they said the codes came up as the O2 sensors, now i honestly don't believe that it's the O2 sensor becauze it only appeared after i finished with the filter. I think its something i touched or didn't do properly. Has anyone had this problem? My car now runs really rough and has trouble with accelerating somethings. Please help, i dont want to spend so much money on a new O2 sensor for no reason

[cwp_sedan]

Year of car?

Double check your connections at the computer if it's a Gen 1 (04-09). They probably aren't seated correctly as they are a little tricky. That is probably causing your issue if you got a CEL right after the filter change.

[HappyJappy]

Check your gas cap too, if it ain't tighten...CEL comes on.

[Johns 08 3 GT]

Year of car?

Double check your connections at the computer if it's a Gen 1 (04-09). They probably aren't seated correctly as they are a little tricky. That is probably causing your issue if you got a CEL right after the filter change.

This. All kinds of U codes. Make sure your guy can read those codes too.

[Itsdanieel]

Yeah its a 2007 series 2. I've only tried reconnecting it once but i didn't push the connectors in all the way, i kind of just pushed it until i was able to pull the clips back over. Do you think if i try disconnecting it and push them in a bit harder it'll fix the problem?

[cwp_sedan]

Yeah its a 2007 series 2. I've only tried reconnecting it once but i didn't push the connectors in all the way, i kind of just pushed it until i was able to pull the clips back over. Do you think if i try disconnecting it and push them in a bit harder it'll fix the problem?

I'm not sure what a series 2 is but 2007 is enough.

Yes you need to go back and check each connection. Be careful not to break anything but you definitely need to make sure they are seated properly. I had a CEL also when I did mine (A/C plus some other stuff didn't work). I reseated the conniptions and it solved the problem.

[ryan2.3]

I'm not sure what a series 2 is but 2007 is enough.

Yes you need to go back and check each connection. Be careful not to break anything but you definitely need to make sure they are seated properly. I had a CEL also when I did mine (A/C plus some other stuff didn't work). I reseated the conniptions and it solved the problem.

i had the same thing happen, i couldn't use my turn signals, or hazards, had no audio, etc. Turns out one of the connectors looked like it was in all the way but still had more to travel to be properly seated

[brucewayne]

been there, done that... redo connections