I got trouble code #1127 and #0135 I know what the second one is but i cannot find out what the first one is. any ideas? Im pretty sure its my 02 sensor after the cat that is giving me problems. My other question is a friend of mine says that if i drive around with a bad 02 sensor for a while will the other 2 might be damaged. does any one know if this is true?

Code 1127 = Exhaust not warm, Downstream O2 Sensor not tersted.

Hope this helps, good luck.....

Yeah i was pretty much knew it was my 02 sensor. I had just replaced it and the stupid %*^$ that put it in cross threaded it so when i took it out i actually bent the 02 socket. Im guessing either the new sensor which i didnt put in all the way so i can retap the thing isnt making decent contact with the cat.