MjMaro

iTrader: (11)

The SES light is on and i'm wondering what I need to check. Told it was the secondary AIR injection system that was producing the code. Had my intake manifold off a few days ago for cleaning and put it back on, drove 80miles with no codes. Was parked for two days in the driveway, turned it on, let it warm up a bit, started driving and the code didn't come until after I was driving for 5 minutes and the engine was up to temp. Any help/advice is greatly appreciated.

brad8266

iTrader: (23)

yeah its the AIR system. Check all the connections for the AIR system, such as the relay, fuses, check valves, and tubes.

MjMaro

iTrader: (11)

So there is no problem driving it with this code on?

2001NBMZ28

Nah, fine to drive. You can look up the code/diagnostics for your year at www.gearchatter.com

MjMaro

iTrader: (11)

Do you guys know of any way this could be related to me removing and reinstalling my intake manifold?

wannafbody

iTrader: (2)

check the check valves and the unit at the back of the manifold

MjMaro

iTrader: (11)

Which unit at the back of the manifold? The vacuum hose or the vacuum sensor?

Also, where are the check valves located? Can anyone snap some pics and throw em up here? Thanks

WILWAXU

iTrader: (6)

Lets try this in the PCM section.

MjMaro

iTrader: (11)

Sry wil, wasn't 100% where tp put it, does anyone else have any advice?

2001NBMZ28

Look closely at all the wiring/hoses around the air solenoid valve, doubt it's the 02s or both air check valves (black disc shaped valves between the metal air tube coming off the exhaust manifold/to hoses) suddenly failing. Did you look at www.gearchatter.com/viewtopic9013.php