C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

HELP! P1416 is back after valve replacement

Thread Tools
 
Search this Thread
 
Old Mar 23, 2005 | 02:09 PM
  #1  
my_mach_5's Avatar
my_mach_5
Thread Starter
Advanced
10 Year Member
 
Joined: Jun 2002
Posts: 51
Likes: 0
From: Valatie NY
Default HELP! P1416 is back after valve replacement

Just had the Pass side check valve replaced....intake was removed to do the job. Prior to its replacment...after 10mins or 10miles i think the code would set. Well now after 56miles were put on the car..the code is back but it now says P1416 NG. If i do an advanced lookup it also shows a P1517 NG. I recently updated my scanner software....and it no longer says this code is for air bank 2 like it did before...Gonna reset again and pray it dont come back...but we ususally dont have that kind of luck. What else could it be? Thanks for any help.
Reply
Old Mar 23, 2005 | 02:34 PM
  #2  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default

There are lots of rubber connections that you should examine. Remove the panel under the front facia (below the head light) and you will see the pump. There are two rubber connections there along with a vacuum line that connects to the motor/pump! You might fine a problem there. After i had mine changed out it came on once and I have NOT seen it again. hopefully that will be your case too.

BC
Reply
Old Mar 26, 2005 | 01:57 PM
  #3  
my_mach_5's Avatar
my_mach_5
Thread Starter
Advanced
10 Year Member
 
Joined: Jun 2002
Posts: 51
Likes: 0
From: Valatie NY
Default

Did you replace any of the hoses or you just suspect them? Light came back today...after they had replaced a rubber hose going to the check valve. This time after 87miles and it idled for only a few seconds and poped up. This car its a PITA.
Reply
Old Mar 26, 2005 | 02:31 PM
  #4  
my_mach_5's Avatar
my_mach_5
Thread Starter
Advanced
10 Year Member
 
Joined: Jun 2002
Posts: 51
Likes: 0
From: Valatie NY
Default

Bill So are you saying the pump can be viewed under the car on the drivers side? Im assuming its all of the large hoses. Is this pump not driving off of the pulley system?
Reply
Old Mar 26, 2005 | 03:04 PM
  #5  
my_mach_5's Avatar
my_mach_5
Thread Starter
Advanced
10 Year Member
 
Joined: Jun 2002
Posts: 51
Likes: 0
From: Valatie NY
Default

Whelp i found the air pump...its electronic i guess. Shows my age...i never seen one not run off the pulley system LOL. I checked the harness connection for tightness and the hoses...all of which were under the drivers side infront of the wheel. All looked OK.
When the car is first started ib elieve the pump cycles 2 times?

Anyone have ideas?
Reply
Old Apr 2, 2005 | 12:00 PM
  #6  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default

Pull off one of the discharges hoses and see if the pump is actually pumping air. If it is the pump is good, the dirverter valve is good and all that leaves are the AIR check valves.

Here is the check valve on the drivers side. The rubber hose id the pump discharge hose for that side. There is a "Y" connection and it delivers air to the other check valve which is "BEHIND" the intake manifold.



You can service the other valve without manifold removal by reaching behind the manifold, removing the fastener that secures the check valve to the manifold, removing this flange on the other side:




and snaking the assembly out the drivers side

Bill
Reply

Get notified of new replies

To HELP! P1416 is back after valve replacement





All times are GMT -4. The time now is 10:19 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE