Hello, I am throwing this code: P0411 Secondary Air Injection System Incorrect Flow Detected[B]. I think it might be that my intake hoses aren't hooked up properly, but I'm not sure. Every time I clear the code it will stay off for a couple of days and then come back. What steps should I be taking? It's weird though, even with the CEL on I can still vtec, I thought the car wont vtec with the CEL on, is this true? Any help will be appreciated...


btw... I have an aem short ram intake.

 

Vaccum hoses are wrong or your check valve is the wrong direction.....

The car with still Vtec with certain CEL's.......right now your just not getting good emissions....

Find Xvipers thread on Air intakes with pictures of the vaccum hoses and the check valve.... clear the CEL and it should be fine...

 

^^^ I'll check the link out, thanks alot for the help !!!!