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Old 11-09-2012, 02:01 PM
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lsmalley lsmalley is offline
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Join Date: Oct 2006
Location: California
Posts: 2,135
Yeah, I think cali is the strictest state in thee nation for smog. I have the same model. a few tips: make sure spark plugs are good. If they are wet or show unusual signs of damage, get the underlying problem fixed. My valve stem seals caused me to fail because oil would leak into the cylinder and get on my plugs. Make sure codes are clear and O2 sensor is working. Make sure air injection system (smog/air pump) is working and intact. Make sure catalytic converter is good. I just had my cat taken out because my transmission vacuum modulator was busted and it sucked in transmission fluid into the intake....I think that caused the honeycomb in my cat (aftermarket) to come loose. I decided not to buy a new cat until right before my smog is due....I even contemplated on having 2 cats put on because its a ***** when you keep failing and have to shell out $60 a test. I found a pass or don't pay place that I want to try out. Good luck......oh and running seafoam every so often helps as well.
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1990 190E 3.0L
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