ok, i am just getting annoyed with this problem and i'm in need of some advice. some of you read already, had my apex DP w/ HF cat installed by local muffler shop. cruised around for a day then CEL comes on. reset my ecu by unplugging my battery for a few minutes (while stepping on brake). Cel light goes away for a day then comes back. so i go to autozone to check the code for my problem and it says "O2 sensor CKT no activity", possible problem is bad O2 sensor.
So my questions are
1) did this guy break my O2 sensor and should i take it back to him?
2) how much to replace sensor myself?
3) could it be a possible bad CAT on the DP (or would the monitor have specifially said "bad catalyst")?
please respond i'm getting very annoyed w/ this and i don't know what to do.
-thanks
So my questions are
1) did this guy break my O2 sensor and should i take it back to him?
2) how much to replace sensor myself?
3) could it be a possible bad CAT on the DP (or would the monitor have specifially said "bad catalyst")?
please respond i'm getting very annoyed w/ this and i don't know what to do.
-thanks