Quote:
Originally Posted by stlrj
High NOx is a sure sign of a tired cat. No matter where you take it, that's the first thing they would replace.
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Quote:
Originally Posted by love911
Don't let anybody tell you ,that you need to change the catalytic converter,it is in perfect condition based upon the reading that I see and mileage of the car,I have seen porsches with well over 200K miles with original cat that it passed the smog (mine one of them).
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These opinions seem to conflict - so which one is correct?
I need to get my '87 tested very soon.