p1416 code
I have no idea to tell you the truth. But this will help you https://ls1tech.com/forums/search.php?searchid=1805967
TECH Junkie
Joined: Jan 2003
Posts: 3,427
Likes: 0
From: Fresno/Chico
Apparently there is a check valve in the air injection system that costs about $30.oo to replace. It seams the only thing this valve is for is to go bad an pop the code. P1415 is also associated with this problem. There probably isnt anything to worry about.. . . Maybe someone else will chime in with with a bit more experience on this.
TECH Fanatic
Joined: May 2004
Posts: 1,030
Likes: 0
From: Wichita KS
ive had this code more than once, i just clear it with my hptuners and go on. Personally I could care less about A.I.R. working.... Also, i think that it may just be a tempermental sensor, Ive had it clear itself before with about 3 days or driving... Nothing to worry about.
TECH Veteran
Joined: Dec 2004
Posts: 4,012
Likes: 1
From: Beaumont, TX
DTC P1416 Secondary Air Injection (AIR) System Bank 2
An AIR pump is used on this vehicle to lower tail pipe emissions on start-up. The PCM supplies a ground to the AIR pump relay, which energizes the AIR pump. The PCM monitors the HO2S voltages to diagnose the AIR system.
During the AIR test the PCM activates the AIR pump during closed loop operation. When the AIR is activated, the PCM monitors the HO2S voltages and short term fuel trim values for both banks of the engine. If the AIR system is operating properly, the HO2S voltages should go low and the short term fuel trim should go high.
If the PCM determines that the HO2S voltages for both banks did not respond as expected during the tests, DTC P0410 sets. If only one sensor responded, the PCM sets either a DTC P1415 or P1416 to indicate on which bank the AIR system is inoperative.
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other possible causes besides the valve:
An obstruction in the exhaust manifold may restrict the amount of air flow necessary to affect the HO2S voltage. If this is suspected, remove the air pipe from the manifold and inspect the passage.
Visually/physically inspect all hoses and pipes for:
Being connected
Clamps are secure on pipes and hoses
No kinks, holes, or pinched hoses/pipes
Components with evidence of heat damage
-
if you want to bother replacing it:
GM part number for 98-99 LS1 Secondary Air Injection Check Valve: 22048212
list price $26.41
An AIR pump is used on this vehicle to lower tail pipe emissions on start-up. The PCM supplies a ground to the AIR pump relay, which energizes the AIR pump. The PCM monitors the HO2S voltages to diagnose the AIR system.
During the AIR test the PCM activates the AIR pump during closed loop operation. When the AIR is activated, the PCM monitors the HO2S voltages and short term fuel trim values for both banks of the engine. If the AIR system is operating properly, the HO2S voltages should go low and the short term fuel trim should go high.
If the PCM determines that the HO2S voltages for both banks did not respond as expected during the tests, DTC P0410 sets. If only one sensor responded, the PCM sets either a DTC P1415 or P1416 to indicate on which bank the AIR system is inoperative.
-
other possible causes besides the valve:
An obstruction in the exhaust manifold may restrict the amount of air flow necessary to affect the HO2S voltage. If this is suspected, remove the air pipe from the manifold and inspect the passage.
Visually/physically inspect all hoses and pipes for:
Being connected
Clamps are secure on pipes and hoses
No kinks, holes, or pinched hoses/pipes
Components with evidence of heat damage
-
if you want to bother replacing it:
GM part number for 98-99 LS1 Secondary Air Injection Check Valve: 22048212
list price $26.41
