P0410 code is set when the air injection system does not blow air into the exhaust system. The monitor that runs and test the system is the Oxygen sensors. With the truck cold follow the air supply hoses to the exhaust check valves. The air pump is located by the heater box under the hood on top of fender well. The exhaust check valves are screwed onto the injection pipes that are connected to the exhaust manifold. remove these and test blowing into them air should only pass one direction (hose side to threaded side only) this is the most common failure. Pump should run on a cold engine and can be heard with hood open if not operating check fuses and relay okay then use jumper wires to test motor is should operate does not replace.
SOURCE: code po410
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.
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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.
A code P0410 may mean that one or more of the following has happened:
Possible solution:
This may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!
SOURCE: the code po410 for the secondary air injection
I believe the check valve is an internal component of the electric AIR shut-off valve. I assume this is a 4.2L as other engines do not have AIR.
SOURCE: chevy 2-2 engine codes po410 and p1137
1137 is an o2 sensor code but I would have to look it up to see which one. 410 is a common one. Check the maxi fuse for the sec. air inj pump in the little fuse box tucked into the fender right beside the battery.
SOURCE: 2005 trailblazer LT..code po410 secondary
if the pump is fine, there must be water in the system. Check the entire system for water build-up or replace the pump
SOURCE: what is the code po410 secondary air injection
Note: There is a technical service bulletin (TSB) regarding this code for a number of GM models. The TSB calls for the replacement of the AIR pump and the installation of a new secondary injection hose. The TSB can be found on this ACDelco site.
Additionally, if you simply replace the AIR pump the problem may return again (and again). If you replace the pump, also clean out the hoses and replace the one-way check valve. If this is on a GM model that the TSB applies to, follow those instructions in the link above. In a few cases, people have put a small hole in the rubber cover on the pump which allows any water to drain out.
Also, please note that this may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!
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