No you need at least a small crankcase vent filter or similar on it otherwise theres a good chance crap will get into your cat convertor and plug it solid which is never fun.

My suggestion would be drill it out on a press, tap the hole w/ npt threads and screw in an air line fitting barb. This is how I did my PCV, that way its getting air from the main filter (1 filter to deal w/), and nothing is just flopping around in your engine compartment.

Its quite easy to do, but I would suggest you practice it first so you dont wreck an Injen CAI. Then post a DIY so every one with just a PCV breather can copy

 

As long as you get the hose connected for filtered air -- but it would be best to get this closer to the filter and before the MAF sensor. If you let unfiltered air in then it will pick up sand and dust and probably eventually destroy the injection pump.

Air Injection Reactor (AIR) systems have been around since 1967 (maybe before but that's when GM started using them on California cars). It pumps air under pressure into the exhaust to help burn any hydrocarbons, helping to reduce emissions. I haven't seen the setup on these cars but if the intake hose goes to the pump and the pump's exit hose goes to a check valve and then into the exhaust that's what its for.

 

hmm...can i just cover up the air inject hole so ill run just like u guys withut air injec? or do i need to get a filter for it?

 

In the past, before computers, disconnecting the AIR system was not a problem. Did it to cars we picked up out of California and brought to the other states. It is possible that your vehicle's computer is set up to account for this system via your O2 sensors and you could affect it by disconnecting the air injection (set a CEL for too rich maybe). Since the reason it connects to the air box is so that it gets filtered air it seams logical that you could find a small filter for the inlet hose and that should take care of your problem. Ask your dealer how they would handle this if you were to purchase a GMPP Performance Intake from them -- it has no connection for the air injection hose (Unless GMPP upgrades the intake that is). Since you first posted your thread I researched the emission requirements -- looks like California, Massachusetts, New York, Maine and Vermont may have these. Good luck!

 

gratzi mucho

 

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