Originally Posted by
Annihilation
I own a Emission station and know for a fact that a muffler is not required to pass emissions.....hell you could have Just a down pipe with a cat and no other piping to pass....just make sure they are able to put the probe into the exhaust. Just because you have a cat and No check engine light on does not mean it will pass..... Depends on how your vehicle is running and the gasses it is emitting.
Old oil
old sparkplugs
bad air filter
running too lean
running to rich
timming
bad rings
everything plays into effect now that they have upgraded the machines this last 6 months
if your car smells like ass or smokes when you press the gas, expect it not to pass
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