PCM code PO410
Advanced
Joined: Dec 2006
Posts: 75
Likes: 1
From: Rhode Island
P0410 OBD-II Trouble Code
Technical DescriptionSecondary Air Injection System Malfunction
What does that mean?The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.
Taken directly from a google search.
Ps. - Check valves often stick.
Technical DescriptionSecondary Air Injection System Malfunction
What does that mean?The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.
Taken directly from a google search.
Ps. - Check valves often stick.
Thread Starter
Instructor
Joined: Oct 2008
Posts: 239
Likes: 10
From: Uxbridge Ontario
P0410 OBD-II Trouble Code
Technical DescriptionSecondary Air Injection System Malfunction
What does that mean?The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.
Taken directly from a google search.
Ps. - Check valves often stick.
Technical DescriptionSecondary Air Injection System Malfunction
What does that mean?The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.
Taken directly from a google search.
Ps. - Check valves often stick.
R
Drifting
Joined: Sep 2003
Posts: 1,363
Likes: 7
From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ
suggest before replacing the pump, confirm the pump will not run and that it is getting power (some PCM's disable the AIR pump when a DTC is encountered). It normally runs for a couple of minutes at start-up.
The DTC 1410 implies both sides O2 sensors didn't react to the AIR pump being turned on, this could also be caused by just both stuck AIR check valves -- that black metal thing connecting the metal pipe from the exhaust manifold to the rubber hose.
On our DD 2000 TransAM (same LS1 engine as our 2000 Vette, except that the passenger side check valve is not under the firewall) we've had both check valves go bad (100k) whereas on our 94 (LT1 w 100k), I replaced both just in case, but they were actually still ok.
One last thought, since its easy to do, suggest removing and checking the driver side check-valve (7/8" and 1" or 1 1/8" wrench needed). This will be much easier than replacing the AIR pump. If you find the check valve to have failed, replace it, reseting the PCM (battery cable removal for a few minutes) and see if pump runs and you then get a different code (e.g. passenger side check valve).
The DTC 1410 implies both sides O2 sensors didn't react to the AIR pump being turned on, this could also be caused by just both stuck AIR check valves -- that black metal thing connecting the metal pipe from the exhaust manifold to the rubber hose.
On our DD 2000 TransAM (same LS1 engine as our 2000 Vette, except that the passenger side check valve is not under the firewall) we've had both check valves go bad (100k) whereas on our 94 (LT1 w 100k), I replaced both just in case, but they were actually still ok.
One last thought, since its easy to do, suggest removing and checking the driver side check-valve (7/8" and 1" or 1 1/8" wrench needed). This will be much easier than replacing the AIR pump. If you find the check valve to have failed, replace it, reseting the PCM (battery cable removal for a few minutes) and see if pump runs and you then get a different code (e.g. passenger side check valve).
Burning Brakes
Joined: Aug 2006
Posts: 753
Likes: 2
From: Denville NJ
I had this problem over the winter. A few members noted the WD 40 trick. Open the system along the driver side of the engine and give it a good spray into one of the hoses. Then let it run and burn off a bit. I guess it frees up a stuck check valve seat, and it does seem to work well. You can see one check valve on the side of the engine with all the heater type hoses, but the common trouble one is behind the engine (figures)! If you do a search you will see more comments and even diagrams. I am very thankful for that tip.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Drifting
Joined: Jan 2000
Posts: 1,660
Likes: 9
From: Charlotte, NC
Run a search for "410" "code" and my name.
I had this and it turned out to be my battery had leaked acid onto the vacuum line that runs to the air pump and triggers it to begin working.
I had already replaced the battery and cleaned up the acidic mess left behind when I started getting this code, so I didn't realize the two were related.
Dealership replaced the vacuum line running from under the battery tray over to the air pump (driver's side in the nose of the car) and all is good for several years.
I had this and it turned out to be my battery had leaked acid onto the vacuum line that runs to the air pump and triggers it to begin working.
I had already replaced the battery and cleaned up the acidic mess left behind when I started getting this code, so I didn't realize the two were related.
Dealership replaced the vacuum line running from under the battery tray over to the air pump (driver's side in the nose of the car) and all is good for several years.
