no. have you checked the condition of the muffler? If that muffler is junk and not flowing then you're putting massive stress on the cat. which will then kill it.
Well I don't know what the dealer did, if anything, but there are the basic fundamentals that should be checked first. Things like the air/fuel ratio, fuel maps and on and on.
Have them disconnect that muffler and test it again. How many miles are on the car?
A sunpro machine isn't going to do didly sh*t. That's for simple autos and those not electronically controlled. The dealership's tools are by far superior but unfortunately the majority of the guys there are morons when it comes to truely knowing how to diagnose a car. Add to that the fact that they don't get paid for twittling their thumbs and scratching their heads. Nevertheless, it needs a real professional to handle it. If all the dealer could do was label it and push it aside then they suck. And you should have raised 10 kinds of hell with them for being worthless. You see, with the dealer's tools they can watch every sensor and operation real time that goes on with that car. Everything they need is right there.. they just have to know how to read it. Can you give some details.. like what the readings were for the smog test? Can you tell me what all they have checked and what the outcome or result was? You're asking me to find a needle in a haystack without telling me what the needle looks like.
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