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1

The reason you are getting the vibration is, the engine should idle at around 800rpm. Down at 500rpm vibration will be a lot more pronounced. You shouldn't get any vibration up at 1000+rpm. I've read reports on other sites people feel it clears up around there. Even at 800rpm there will be a slight vibration. I'm thinking you already had a vacuum leak at ...


7

Picture 1 is the downstream 02 sensor. Upstream is located on the exhaust manifold. Picture 1 contains both convertors. Picture 2 is the exhaust resonator.


7

Have you changed the cabin filters lately? Black mold can smell like Urine-Ammonia, this mold can also grow on the ac evaporator coil. Pull the cabin filters and check for mold. Other than this it could be a rich running engine that causes the catalytic converter to put out strong odors.


1

Years ago when I used to inspect vehicles for a living. There was one thing that would cause such nasty fumes after 30 minutes or so. It was over spray from the anti-rust coating that sometimes would end up on exhaust parts and cause pungent sulfurous stench when hot. If it were an exhaust leak it would noticed a lot sooner and have a noise as well.



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