Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
p0531 32 and 33 are A/C pressure switch codes not ignition coils are you sure those were the codes.
the vehicle runs though correct?
i would start by checking ground 109 and ground 112, in picture 1 its the number one, in picture 2 its number 2. the first picture is of the rear of the back cylinder head, the second one is near the starter.
its worth removing and cleaning them then, clear codes and see if they reset, if so we will need to test hz at the coils.
do you have a multimeter?
does it have Hertz scale on it