Hi, Ok I received the codes - P0301 and P0420
Both point to #1 misfire but I do not think this is the case since it has a smooth idle and acceleration. The P0420 does point to a Catalyst efficiency low-bank which could be the oxygen sensor monitor in the converter but also the catalytic converter could be getting plugged. Since this vehicle goes through an enormous amount of oil and has since I bought it at 31K I am leaning toward a oxygen sensor. An example is that it goes through a gallon of synthetic oil every 2 months or so. There are no oil leaks anywhere so it is going through the engine and I am sure gumming up things. At this point I am thinking of trading it in this week if possible. I bought an extended warranty that has since ran out but thankfully it was in force since I had a front and rear air conditioning leak that need repair, a full steering rack replacement, some electrical issue that the warranty did not cover so I complained to the dealer since it had only 40K miles on it and the replaced the part for only $38 and now this issue all at only 69.040 miles. WOW what s in store for me next. I truly appreciate your help and will not be fixing this issue, the dealer can before they sell it overseas or scrap it. Thank you again.
Tuesday, December 27th, 2011 AT 7:12 PM