trouble code 0410 air system[help]
Advanced
Joined: Sep 2005
Posts: 64
Likes: 0
I'm currently having the same problem. Things to check for before you get into the larger things are 1. do you hear the pump working when you start the car.(it is under the drivers headlight) 2. if you dont hear it, then check your fuse and relay for it. 3. if you do hear it working then it is not shooting out air , like mine and thats where im at right now. I will keep you posted if i find anything out.
Racer
Joined: Nov 2004
Posts: 364
Likes: 2
From: Picton Ontario
air system
If the pump is ok, it may be that the 2 check valves in the system (bank1 and 2) are sticking. They are not expensive and if you do a search of the forum archives you will find more pics and info. It is a common problem as the cars age. 
Advanced
Joined: Sep 2005
Posts: 64
Likes: 0
What i would do first is check if there is air coming out of the pumps outlet, before checking the check valves, because if there is no air coming out to the check valves, then you will not know if they are bad or not.If you do have air coming of the pump, then it is most likely your check valves.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The pump supplies air to the exhaust manifold at start up. The by-pass valve is vacuum operated and the by-pass is mounted to the pump.
If I were you I would try to clean the check valves before you replace them. Spray a little carb cleaner in the rubber hose before the check valve and blast it with a shot of compressed air. The check valves get dirty and stick shut. When the PCM doesnt see the O2 sensors go lean (pump running) it stes the AIR System DTC. There are DTC's for each valve or both! Or you could just remove then and clean them or replace them. The drivers side one is cake. the passengers side valve is behind the intake manifold and it is a B I T C H to get to!!!
if that one stichs shut, i sure would try to clean it before I would replace it!!!
BC
If I were you I would try to clean the check valves before you replace them. Spray a little carb cleaner in the rubber hose before the check valve and blast it with a shot of compressed air. The check valves get dirty and stick shut. When the PCM doesnt see the O2 sensors go lean (pump running) it stes the AIR System DTC. There are DTC's for each valve or both! Or you could just remove then and clean them or replace them. The drivers side one is cake. the passengers side valve is behind the intake manifold and it is a B I T C H to get to!!!
if that one stichs shut, i sure would try to clean it before I would replace it!!!BC
Pro
Joined: Jun 2005
Posts: 593
Likes: 1
A P0410 is both sides failing the AIR test and would not trip that code if one check valve was sticking for the O2 for that side would cause a different AIR error code.
P0410 points more to either air is not being pumped into both exhaust manifolds, placement of front O2s are not at the right distance or something that prevents the short term fuel trims to instantly report lean when AIR test is done for that is how the PCM knows AIR system was functioning correctly
Most P0410 errors occur with headers not designed correctly for front O2 placement that cause them to report false rich AFR or exhaust leaks effecting the O2s.
P0410 points more to either air is not being pumped into both exhaust manifolds, placement of front O2s are not at the right distance or something that prevents the short term fuel trims to instantly report lean when AIR test is done for that is how the PCM knows AIR system was functioning correctly
Most P0410 errors occur with headers not designed correctly for front O2 placement that cause them to report false rich AFR or exhaust leaks effecting the O2s.
Safety Car
Joined: Sep 2002
Posts: 4,161
Likes: 12
From: San Diego CA
Originally Posted by boosted_z06
A P0410 is both sides failing the AIR test and would not trip that code if one check valve was sticking for the O2 for that side would cause a different AIR error code.
P0410 points more to either air is not being pumped into both exhaust manifolds, placement of front O2s are not at the right distance or something that prevents the short term fuel trims to instantly report lean when AIR test is done for that is how the PCM knows AIR system was functioning correctly
Most P0410 errors occur with headers not designed correctly for front O2 placement that cause them to report false rich AFR or exhaust leaks effecting the O2s.
P0410 points more to either air is not being pumped into both exhaust manifolds, placement of front O2s are not at the right distance or something that prevents the short term fuel trims to instantly report lean when AIR test is done for that is how the PCM knows AIR system was functioning correctly
Most P0410 errors occur with headers not designed correctly for front O2 placement that cause them to report false rich AFR or exhaust leaks effecting the O2s.
I started getting the 0410 code right after my LT headers went on.
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