check engine light came on p1416
Thread Starter
Racer
Joined: Feb 2014
Posts: 341
Likes: 11
From: Auburn Hills Michigan
check engine light came on p1416
Ok so i added lucas to my gas thinking lets see if ican remove some carbon build up or get better gas etc ive used their fuel cleaner before and feel its helped so i figured give it a shot....
However not long after my check engine light came on and threw a p1416 code...
And literally as i am typing this sitting in my vette on my phone the code finally went away?! Lol i guess ill respond if it comes back on?
However not long after my check engine light came on and threw a p1416 code...
And literally as i am typing this sitting in my vette on my phone the code finally went away?! Lol i guess ill respond if it comes back on?
Pro
Joined: Sep 2008
Posts: 537
Likes: 2
From: Whitesboro Texas
That is the passenger side air check valve. You have to remove the intake manifold to replace it. You can also spray some carb cleaner in the hose, blow it through with air, spray some WD-40, and blow that through with air. It will work for a while. The rubber diaphragm gets hard and doesn't funtion right is the issue.
Thread Starter
Racer
Joined: Feb 2014
Posts: 341
Likes: 11
From: Auburn Hills Michigan
That is the passenger side air check valve. You have to remove the intake manifold to replace it. You can also spray some carb cleaner in the hose, blow it through with air, spray some WD-40, and blow that through with air. It will work for a while. The rubber diaphragm gets hard and doesn't funtion right is the issue.
Advanced
Joined: Jul 2013
Posts: 75
Likes: 1
From: Seattle Washington
I hate that check valve... A couple of years ago, my C5 was persistently throwing that code on and off for almost a year before I gave in and decided to properly address it (putting it off due to the PITA location).
During the process of replacing the valve, I also decided to relocate it the direct opposite side of the driver's side unit (as it should have been from the factory) to ease future replacement.
During the process of replacing the valve, I also decided to relocate it the direct opposite side of the driver's side unit (as it should have been from the factory) to ease future replacement.
Melting Slicks
Joined: Apr 2009
Posts: 2,479
Likes: 36
There is no getting away from this. You will need to change the passenger side check valve. The good news is that it's a pretty inexpensive part. The bad news is you will need to remove the air intake manifold to get to it.
PS: I'll probably be flamed for this but, I'm not a big fan of spraying WD40 in the air tubes as some members have done. I still am concerned about the WD40 fumes/spray contaminating the O2 sensors. Furthermore, it's only a temporary bandaid fix.
Thread Starter
Racer
Joined: Feb 2014
Posts: 341
Likes: 11
From: Auburn Hills Michigan
That code will come back. When you reset it, it does not come back right away because the computer runs diagnostics during the next two cold starts. If it doesn't get the response it is expecting it will throw the CEL again.
There is no getting away from this. You will need to change the passenger side check valve. The good news is that it's a pretty inexpensive part. The bad news is you will need to remove the air intake manifold to get to it.
PS: I'll probably be flamed for this but, I'm not a big fan of spraying WD40 in the air tubes as some members have done. I still am concerned about the WD40 fumes/spray contaminating the O2 sensors. Furthermore, it's only a temporary bandaid fix.
There is no getting away from this. You will need to change the passenger side check valve. The good news is that it's a pretty inexpensive part. The bad news is you will need to remove the air intake manifold to get to it.
PS: I'll probably be flamed for this but, I'm not a big fan of spraying WD40 in the air tubes as some members have done. I still am concerned about the WD40 fumes/spray contaminating the O2 sensors. Furthermore, it's only a temporary bandaid fix.
Melting Slicks
Joined: Aug 2006
Posts: 3,270
Likes: 29
From: Chilliwack B.C.
I guess I might not have clarified, when I was sitting there the light went away by itself while it was idling and hasn't been back on....I didn't reset the code or have it reset ever....So I believe the lucas did something to throw the code and either the computer corrected itself or the lucas went away not sure....I'll keep my eye out for the code but I drove my vette last night 25 miles or so after the light went off and another 25ish today so far and no check engine light yet
Thread Starter
Racer
Joined: Feb 2014
Posts: 341
Likes: 11
From: Auburn Hills Michigan
Im sure eventually it will...because eventually everything goes bad....however i really think the lucas did something because it did the same thing to someone else....so i guess this is a test of time to see if it comes back on...
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Joined: May 2012
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From: Phoenix area, AZ
Race Director
Joined: May 2012
Posts: 15,733
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From: Phoenix area, AZ
Advanced
Joined: Jul 2013
Posts: 75
Likes: 1
From: Seattle Washington
Race Director
Joined: May 2012
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From: Phoenix area, AZ
Race Director
Joined: May 2012
Posts: 15,733
Likes: 3,254
From: Phoenix area, AZ
Melting Slicks
Joined: Jul 2013
Posts: 2,012
Likes: 23
From: Anaheim CA
If the former, the smog test may fail for elevated levels of whatever due to a nonfunctioning or malfunctioning emission widget.
If the latter, the test will fail due because a piece of emission gear that is supposed to be on the car isn't. (At least that's how the test gear here works.)
Race Director
Joined: May 2012
Posts: 15,733
Likes: 3,254
From: Phoenix area, AZ
I guess it depends on what "tuning out" implies. Does it just keep the PCM from throwing codes for it, or does it show it as non-existent?
If the former, the smog test may fail for elevated levels of whatever due to a nonfunctioning or malfunctioning emission widget.
If the latter, the test will fail due because a piece of emission gear that is supposed to be on the car isn't. (At least that's how the test gear here works.)
If the former, the smog test may fail for elevated levels of whatever due to a nonfunctioning or malfunctioning emission widget.
If the latter, the test will fail due because a piece of emission gear that is supposed to be on the car isn't. (At least that's how the test gear here works.)
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Joined: Jan 2007
Posts: 18,643
Likes: 14
From: Norman Oklahoma - The Only State in the Union with no Blue Counties!
LG Motorsports will be at the 7th Annual NCCO All Corvette Charity Car Show, 6/21/14 and so will Chuck CoW. Bet they can fix ANY tuning needs!
Thread Starter
Racer
Joined: Feb 2014
Posts: 341
Likes: 11
From: Auburn Hills Michigan