s40t check engine light Topic is solved

[Rick DC]

I wonder if you you point me in the right direction?

'Check Engine' light comes on intermittently. The dealership claimed that iit was the front O2 sensor which has been replaced and reset on several occassions. The problem persists. The 'local specialist' told me that the computer indicates a code of, '63' yet the codes for this model start at 100 ? When the light does come on, the care runs a little rough.

Thanks,
Rick DC