Quote:
Originally Posted by MNBoxster
Hi,
Initial Mis-Diagnosis. The Codes have to be interpreted. There is no code - "Your CAT is going Bad, or has failed", the DME will state any number of irregular operations and it's up to the Mechanic to make the proper interpretation. Unfortunately, these guys usually go with what they see most often, or what is the most expedient. Good Luck!...
Happy Motoring!... Jim'99
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You are right when it came time to replace the MAF and O2 sensors...every mechanic just glanced at the codes and replaced something...and then a new code would pop up just miles later...back in I went. I have gone a year without codes until this last one. The CAT code. The Porsche mechanic used his diagnosis equipment and stated the flow rates for the cat was low thus replacing it. He also advised that one of my O2 sensors was bad (although I had it replaced in the last 3 months). Hmmmm...now that I'm typing this I realize I am just repeating what happened a year ago...replace parts until its fixed...not very efficient!