Bart01SS

Hey guys just got an 01 ss about 3 weeks ago. Today the service engine soon light came on at 66,090 miles. Do they come on at certain times? or does it mean somthing?

Checkmate

iTrader: (2)

It means something, best piece of advise is go to autozone and have it scanned for free. Come back and post what code you have, then we can help.

Bart01SS

The code is P1416 Secondary AIR system bank 2 - air injection, wiring, some kind of bloackage, bank 1 ????????

sound expensive? should i take it to the dealer?

WS6 RULES

I had that code.and then P1415. It is the gulp (check) valve on the AIR. Follow the AIR pipe up from the exhaust manifold. Where the steel pipe turns into a rubber hose thats it. That big round valve. 1415 and 1416 just means left and right. Trust me if one went out just change both. There are about $12 each. Easy job, about 15 min. I saved my old ones, they were stuck shut (blockage). Put them on the work bench and put oil in them. Checked them about a week later and they work again! I keep them for spares. You can blow thru them. Should pass air one way only. Just a quick easy check. Good luck

2001NBMZ28

Friend of mine just threw P1416 - replaced the passenger side air check valve, his was full of carbon too. GM PN is 12565503 (same for either side). If you don't want to reset the PCM to clear the light after you install the new one it'll go off by itself after 3 or 4 cold starts.

black00TA

iTrader: (3)

yep, secondary check valve. its a pain in the *** to get to as well. if u dont want to buy a new one, let it soak in oil overnight and viola works perfect.

Bart01SS

thanks guys!

Bart01SS

It was 2 bad valves