Passenger side air check valve.
Tech Contributor
Joined: Jan 2007
Posts: 19,493
Likes: 1,178
From: Dyer, IN
The AIR pump running during normal operation is not "normal" at all. It suggests that a problem has been detected. The PCM is capable of running two type of tests:1) Passive
2) Active
If the passive test fails on startup, the PCM will run the active test, during normal operation. If the passive test passes during startup, the AIR pump will not run during normal operation.
Last edited by lucky131969; Dec 5, 2011 at 07:00 AM.
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Yes, refer to your service manual ZeeOSix..... The AIR pump running during normal operation is not "normal" at all. It suggests that a problem has been detected. The PCM is capable of running two type of tests:
1) Passive
2) Active
If the passive test fails on startup, the PCM will run the active test, during normal operation. If the passive test passes during startup, the AIR pump will not run during normal operation.
The AIR pump running during normal operation is not "normal" at all. It suggests that a problem has been detected. The PCM is capable of running two type of tests:1) Passive
2) Active
If the passive test fails on startup, the PCM will run the active test, during normal operation. If the passive test passes during startup, the AIR pump will not run during normal operation.
Team Owner
Joined: May 2001
Posts: 87,404
Likes: 1,595
From: Western NY
Pro
Joined: Aug 2010
Posts: 593
Likes: 9
From: San Antonio Texas
My tuner explained to me that he moved the parameters so far out in temperature that the car would have to be on fire for the computer to recognize that there is a problem. So unless I didn't understand, the AIR system is still operating and shows ready it just doesn't recognize a problem and thus no CEL.
Instructor
Joined: Dec 2006
Posts: 128
Likes: 2
From: Trenton New Jersey
I'm just going to guess here. If the puter knows something is wrong on bank 2, it has to do with O2 sensor readings during warm up. That is the only time the AIR pump runs. If it's setting this code, then I think the valve is stuck closed and not providing air to the pass side. Or, the pump output is low and can only open one valve.
A guy could remove the fittings (or hose) from the manifolds, then blow air through at the T, or individually, to see if air comes out on each side. If the pass side doesn't flow, then it's stuck closed. Maybe compressed air would free it? They are simple spring loaded valves.
I am in NE Portland, so welcome Hillsboro.
I just got done removing the intake manifold on mine, my first time. Not too bad, but removing that brake vacuum canister line was a bitch. I was able to remove the AIR lines from the back of the head pretty easily, and mine are not going back on. FWIW.....13mm offset box wrench and good feel for the bolt head.
I'm willing to help you troubleshoot it if you can wait until the weekend. I have a 1 car garage and guess what's in there?
I also have the tuning software to tune this out, but am real new at it so if the fellows here can tell me what to edit, I can do that. The only "tuning" I've done on my car thus far is the fan temps.
BTW, I work in Beaverton (Tektronix)
I followed a Red 200X Vette on TV highway on Friday around noon, turned left by Carr Chev. You? I don't see many around.
Ron
A guy could remove the fittings (or hose) from the manifolds, then blow air through at the T, or individually, to see if air comes out on each side. If the pass side doesn't flow, then it's stuck closed. Maybe compressed air would free it? They are simple spring loaded valves.
I am in NE Portland, so welcome Hillsboro.
I just got done removing the intake manifold on mine, my first time. Not too bad, but removing that brake vacuum canister line was a bitch. I was able to remove the AIR lines from the back of the head pretty easily, and mine are not going back on. FWIW.....13mm offset box wrench and good feel for the bolt head.I'm willing to help you troubleshoot it if you can wait until the weekend. I have a 1 car garage and guess what's in there?
I also have the tuning software to tune this out, but am real new at it so if the fellows here can tell me what to edit, I can do that. The only "tuning" I've done on my car thus far is the fan temps.
BTW, I work in Beaverton (Tektronix)
I followed a Red 200X Vette on TV highway on Friday around noon, turned left by Carr Chev. You? I don't see many around.
Ron
Ron, if I may, I'll send you a message when I'm ready to do the job and if your still willing it would be great to do the job with someone like yourself who's done it already.
BTW that Red 200X Vette on TV highway wasn't me, I'm a millenium yellow coupe.
Similarly, on Monday, I too was following a red C5 vert on a skyway over the river in Portland when it hit an ice patch-got sideways-checked up and regained control, he must have had a small heart attack and me too for just watching.
Again thanks for the generous offer!
Anthony
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Intermediate
Joined: Oct 2001
Posts: 40
Likes: 2
From: santa clara ca
P1416 another fix
You might consider doing it this way. No need to remove the intake:
https://www.corvetteforum.com/forums...other-fix.html
Just give the WD-40 time to soak into the pipe threads. The next time I replace this valve it should take me about 30 minutes.
https://www.corvetteforum.com/forums...other-fix.html
Just give the WD-40 time to soak into the pipe threads. The next time I replace this valve it should take me about 30 minutes.
