check engine light

So about week ago i got a tune up . the mechanic is guy i just met seem well educated about his work. So all i asked was to change plugs thats it Midas and everybody else was gonna charge me up to $450 2.5 hours labor and 6 plugs. So Larry we will call him say oh you will need a gasket for the...

Okay, so for the last 6mo (maybe) my check engine light has come on, gone off, came back on and so on. EVERY SINGLE TIME I get the code read its always my cat bank 2. I have replaced the back 2 cats, had the code reset, changed the O2 sensor, recently had a tune up (spark plugs changed and fuel...

Hey guys. I'm having a little issue with my X. My check engine light does not work. I purchased it in Oct '11 and it has never worked. I scanned it with my scan tool when I got it and no codes were stored. However I checked it again a few weeks ago and now it has a code. I've already fixed...

Hi, Ive had my xterra for 2yrs now. Ive taken it all over on and off road. I was visiting the site since I cant figure out why my check engine light is on. The OBD2 code reads Knock sensor ( High bank) and Misfire (multiple). Ive read on other forums that the knock sensor by itself would not...