Originally Posted by tomerloy
changed out the original spark plugs (138K on them) and it is running perfect!!
Hey tomerloy, i have a cng crown vic throwign the exact same code and almost exact same mileage.
did you really need the 02 sensor or was the code being thrown due to a bad spark plug (and the 02 sensor couldn't correct the mixture)?
should i start with plugs first or do both plugs and 02 sensor??
thanks -- please let me know