Failed SMOG again in CA...High NOX count....

[zooopreme]

^That

Originally Posted by andisan

My issue was all dirty emission components, so before you start buying new parts, take all your emission parts and clean them real good, take them apart and clean them, I learned the hard way

This

Originally Posted by yetijeff

Pop the Allen caps on top of ur intake mani runners. They're clean outs for ur egr ports. 90% of these cars have never been cleaned and are packed solid with carbon not allowing egr gasses to pass through.

And this


These posts should be the first things you should try before taking your car back for a smog check. Chances are these parts are backed up and dirty as hell.

Then proceed with the cheaper things on the list and work your way to the more expensive parts if you're still not passing. If you wanted to pass smog with flying colors, you're going to have to do a lot more.

But if that's something you don't want to do, since smog is such a headache when the car runs fine and is relatively stock, get the car to where it barely passes and then proceed to replace/fix.