P1416 tuning question
Thread Starter
Pro
Joined: Dec 2011
Posts: 718
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From: North Reading MA
P1416 tuning question
Replaced the valve 2 years (16K miles) ago and the code is now back. If I have it tuned out will I have any issues with inspection when they plug in?
Also do you leave the tube in place or cap it off near the alternator?
Also do you leave the tube in place or cap it off near the alternator?
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
https://www.corvetteforum.com/forums...1416-code.html
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Joined: Apr 2013
Posts: 5,033
Likes: 1,156
From: Oregon
St. Jude Donor '14-'15-'16-'17-'18-'19-'20-'21-'22-'23
I have never had an issue after I deleted my AIR system
Edit: Yes you can tune out the code and still pass emissions tests
Edit: Yes you can tune out the code and still pass emissions tests
Last edited by Smoken1; Oct 25, 2016 at 05:49 PM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Before you get tooo carried away deleting stuff, I would carefully inspect the rubber hoses, piping and fittings that deal with BANK 2 A.I.R. stuff.
Directly below the master cylinder is a metal SS "Y" pipe and rubber hoses. Seen that/those hoses ROT and cause the same code. The AIR fitting FLANGE directly on the exhaust manifold has a small fiber gasket that can deteriorate and leak air and give the same DTCs. Take it off and inspect. Make sure that flange is sealed and tight.
Take that BANK 2 fitting off the intake manifold, Cold start the engine and see if you have a GOOD stream of fresh air from the A.I.R. supply pipe.
If NOT, something is wrong. Figure it out. YES, that NEW check valve can be the issue. If the Rubber diaphragm inside the check valve is stuck shut or the air flow path is compromised that bank will not flow the proper volume of air required to pass the test for that side O2 sensor.
Directly below the master cylinder is a metal SS "Y" pipe and rubber hoses. Seen that/those hoses ROT and cause the same code. The AIR fitting FLANGE directly on the exhaust manifold has a small fiber gasket that can deteriorate and leak air and give the same DTCs. Take it off and inspect. Make sure that flange is sealed and tight.
Take that BANK 2 fitting off the intake manifold, Cold start the engine and see if you have a GOOD stream of fresh air from the A.I.R. supply pipe.
If NOT, something is wrong. Figure it out. YES, that NEW check valve can be the issue. If the Rubber diaphragm inside the check valve is stuck shut or the air flow path is compromised that bank will not flow the proper volume of air required to pass the test for that side O2 sensor.
