"madloof72" > wrote in message
oups.com...
>I know what the error code it. Its 1221 which is the 02 sensor.
>

Then you also (now?) know that it a faulty O2 sensor reading is not
due to an overdue oil change. How many miles on the car? If around
100k miles or moire, then it is quite likely a tired sensor. But
those puppoies aren't cheap and (depending on the model and year)
there are multiple (up to 4) of them in the system. Might be best to
have it diagnosed before thowing > $400 in O2 sensors at it, UNLESS it
is due to have them replaced anyway. ISTR that 100k miles is the
magic number in most cases.

-Fred W