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Fixing a P1416 code Fixing a P1416 code
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Old 05-25-2011, 06:19 am   #1
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Well this is how I did it anyway! :)

Tried cleaning it and the code came back. When I actually got the valve off, it was really carboned up! The valve hole, where it mates to the pipe, was smaller in diameter due to the carbon build up.

Had to stand on the engine to loosen the valve and the only way I could get leverage to separate the valve from the pipe. If I tried to lean over the fenders, I just could not get the proper leverage to move the wrenches. This valve was REALLY bonded onto the pipe and there is not much room to work in. I think the coarse threads on the pipe also do not help the situation.

It’s all back together now and runs just fine! What a sucky job though!

And yes, yes you must take your shoes off to enter my garage! :)
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Old 05-25-2011, 09:09 am   #2
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I like the no quit attitude!

Job well done.
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Old 05-25-2011, 10:31 am   #3
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I knew you'd get a kick out of it Larry since we talked about cleaning first.

I soaked the pipe threads down for a couple of days, but that valve did not want to move! So it was me against the vlave and I thought, I have to do this, its the only way. Disconnected the one knock sensor and then took off my shoes and stepped right onto the lower intake! It still did not move easily, but eventually did.

I was happy I did not hit the original oil pressure sensor and put a new intake gasket set on, started it up and all was perfect!

Note to everyone... Whatever the dealers charge is well worth it, trust me, its not a fun job!
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Old 05-25-2011, 11:23 am   #4
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How many miles when you had to do this & what oil and oil change interval?
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Old 05-25-2011, 11:47 am   #5
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Quote:
Originally Posted by froggy47 View Post
How many miles when you had to do this & what oil and oil change interval?
I have 65,000 on the car. I change my oil once every two seasons, its due at the end of this one. I only use Mobil 1 too.
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Old 05-25-2011, 12:33 pm   #6
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Did you take a pic of the valve? Before/after?
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Old 05-25-2011, 01:48 pm   #7
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Quote:
Originally Posted by froggy47 View Post
Did you take a pic of the valve? Before/after?
No, sorry.

I looked at it to inspect, saw the carbon and touched it with my screwdriver to see if it was impacted or not. It was not and broke apart pretty easily. I still have the old valve, it just looks pretty black inside.
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Old 05-25-2011, 09:06 pm   #8
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I'm lost. What valve is this?

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Old 05-25-2011, 09:38 pm   #9
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Quote:
Originally Posted by markw8 View Post
I'm lost. What valve is this?

Mark

Right side AIR check valve located behind the intake manifold.
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Old 05-26-2011, 05:33 am   #10
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Both valves look like this...
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