So my brakes went out today and mechanic says I need to replace the copper brake lines and that they have cracked. After some research, I realized there's an HEL replacement. I also noticed a bunch of companies just sell the straight copper line and then fittings (which is far more affordable). Any ...

California has sent me the dreaded smog check letter (even though I passed smog check 15 months ago grrr). My car has a check engine light and I've metered it and it says: P0434 main catalyst below threshold P0422 main catalyst below threshold P1618 (what does this mean???) When at idle, the low oil...