OK, I know these code/problems are covered in this wonderful forum, BUT I wonder what is the most common problem and can you guys give me a head start to solving them ?
Transmission problems Code P0706 and P0730
Do note, I have 167,000 miles on the car I have just replaced the solenoid block/filter and fluid (the faults were there before)
Emissions code P0430 dat damn Cadillac (many Americans I have met call it that) cunvorter error, OR just an oxygen sensor ?
Any help to shortcut fixing these errors would be gratefully received.
Gary