P1416 has come and gone in my car too ever since my header install. Curious to know what to do as well...
P1416 Again
Thread Starter
Race Director
Joined: Dec 2002
Posts: 10,233
Likes: 21
From: Baltimore suburbs Maryland
P1416 Again
...P1416 is the AIR check valve that happens to be buried BEHIND the intake manifold 
I replaced it once maybe about a year or so ago, and I'm getting P1416 AGAIN! It was an absolute pain in the posterior, I wound up with bloody knuckles. Not looking forwards to doing that again. Why does this one always fail while the other keep working, which is very easily accessible???
I replaced it once maybe about a year or so ago, and I'm getting P1416 AGAIN! It was an absolute pain in the posterior, I wound up with bloody knuckles. Not looking forwards to doing that again. Why does this one always fail while the other keep working, which is very easily accessible???
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Since there are rubber lines in the system, I am wondering if you could move it out where access is better. Maybe even adapt the driver's side to the passenger side and re-plumb. Not sure why that one, although maybe it doesn't get as hot and tends to hold any condensation as opposed to the other which is right on the manifold.
Racer
Joined: Nov 2004
Posts: 448
Likes: 0
From: MCHENRY ILLINOIS
1416
...P1416 is the AIR check valve that happens to be buried BEHIND the intake manifold I replaced it once maybe about a year or so ago, and I'm getting P1416 AGAIN! It was an absolute pain in the posterior, I wound up with bloody knuckles. Not looking forwards to doing that again. Why does this one always fail while the other keep working, which is very easily accessible???
I replaced it once maybe about a year or so ago, and I'm getting P1416 AGAIN! It was an absolute pain in the posterior, I wound up with bloody knuckles. Not looking forwards to doing that again. Why does this one always fail while the other keep working, which is very easily accessible???Last edited by royski; Jan 13, 2007 at 09:21 PM.
Pro
Joined: Dec 2005
Posts: 619
Likes: 2
From: Destin FL
Am I to understand that BOTH of you previous posters have replaced this check valve WITHOUT removing the intake manifold? 
I used to get this code almost every day. When I posted a thread asking if it was possible to change the check valve without removing the intake, I was told it couldn't be done. I just kept resetting the DIC every day and after a couple weeks it quit giving that code.
What's the trick to getting it out and replacing it?
I used to get this code almost every day. When I posted a thread asking if it was possible to change the check valve without removing the intake, I was told it couldn't be done. I just kept resetting the DIC every day and after a couple weeks it quit giving that code. What's the trick to getting it out and replacing it?
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Am I to understand that BOTH of you previous posters have replaced this check valve WITHOUT removing the intake manifold? I used to get this code almost every day. When I posted a thread asking if it was possible to change the check valve without removing the intake, I was told it couldn't be done. I just kept resetting the DIC every day and after a couple weeks it quit giving that code.
What's the trick to getting it out and replacing it?
I used to get this code almost every day. When I posted a thread asking if it was possible to change the check valve without removing the intake, I was told it couldn't be done. I just kept resetting the DIC every day and after a couple weeks it quit giving that code. What's the trick to getting it out and replacing it?
And, yes, that "pesky" passenger air check valve is one **** to access, let alone, reinstall. But, with a little sweat equity, it can be wrangled. What I would like to do is list for you the following links. Please read through the provided threads. The information offered (one of the threads has pics) should prove helpful for you:
http://www.ls1howto.com/index.php?article=5
Last edited by Dave68; Jan 30, 2007 at 07:17 PM.
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