My first smog since I got the car 2 years ago.
Its had a history of not passing on first time.
Not sure if that is becasue it has been a stored car w maybe 100 miles per year for many years or they took it in cold.

My 88 Volvo passsed a few months ago

tips were
engine at temp
full gas tank
new oil
tire pressure
etc

I'll do all that but just wondering how it was converted & if that hurts it.

My main question is there is a flexible metal alum tubing coming out from under the pass side exhaust manifold area & its not connected to anything.

If that could be a problem I;d like to have that fixed before I fail a smog?

Here is the pic.

Thanks

Any other tips?
Should the day temps be as cool as possible? humidity?
anythiing helps

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83 500 SEC Euro 198K