Quote:
Originally Posted by samiam44
Was it a real cold day? Did they do it on the dyno?
On my cars, I ussually change the oil right before hand. I run them hard and get them very hot.. try to be the first one there in the morning. You can simply fail if the cat isn't up to temp.
Is it running rich? Maybe the temp sensor is out of range- you can measure it and compare with spec.
Is the new cat a factory cat or some cheapo aftermarket?
M
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I took the inspection at 1pm after driving 35miles. So the engine was hot when I arrived. However I had to wait 30min, maybe the engine was getting cold again.
The cat was replaced to a total cost of $680.- part and labor and I heard that factory cat was over $1,400 in part alone, so it was most likely aftermarket stuff.
My PO wouldn't have wanted to spend that much on 20 year old car.
Car running rich or lean? I don't know, what do the numbers say?