P0410 - Secondary Air Injection System Malfunction
Possible causes- Faulty Vacuum hoses damaged
- Faulty Air Pump inoperative
- Air bypass solenoid harness is open or shorted
- Air bypass solenoid circuit poor electrical connection
- Air bypass solenoid leaking/blocked or stuck open/closed
- Air diverter valve leaking/blocked or stuck open/closed
This is likely a pump problem caused by water being sucked into the secondary air injection pump under the hood.
SOURCE: 2004 trailblazer,with po410 code.replaced purge
p0410 secondary air injection valve malfunction..
Just know that diagnosing this is time consuming since the "system" is only active for a few seconds on cold start.
for now:
1.) wait for your car to be "cold" or 4 hours. Disconnect the hose from check valve (located passenger side--the transmission dip stick is attached to the bolts that hold it to the block). Start the truck, you should hear a nasty sound for about 30 seconds to a minute. If you don't its your check valve.
1a.) If it is your check valve, you can try to clean it. Get some throttle body cleaner, remove the check valve spray thouroughly (I did it a couple of times to get all the carbon and rust out) and let dry reinstall and follow above instructions. If no go replace check valve
2.) wait for your car to be "cold" or 4 hours. remove the fattest hose from the underside of air intake hose (I think thats where it is, I have a CAI so Its hard to know where it is exactly OEM) and from the check valve. Have someone else start the truck. Feel the hoses, you should feel sucking and blowing (I can't remember which is supposed to blow / ****) If you don't feel anything then its the pump (maybe -- read further)
2a.) check fuses there are about 3 in the manual listed for air pump (if bad fuse replace and retest, make sure to check the fuses after to make sure that the pump isnt blowing fuses)
2b.) Locate the air pump its driver side mid car just behind the cross member for the frame. There are two wiring harnesess one that goes into the relay (grey box) and one that has two fat wires (thats the power plug for the pump.) disconnect that one, wait for cold start and start truck while having a multimeter attached set on DC mode. If you get a reading of 0 then replace the relay. if you get power 12-15 volts replace the motor.
3.) If both the check valve and the pump are testing out ok it could be a clogged hose.
There are only 3 parts to this system, Check Valve ($125), Air Pump ($280) and Relay ($50). parts4chevys.com has it listed as a check valve. $128 list. Good luck and hope this helps
SOURCE: check engine light on pulled code po410
this is caused by a defective seconday air injection pump, replace the pump.
SOURCE: I have a 2004 buick rainier and i,m getting a code po410
P0410 Secondary Air Injection System Malfunction
I am very familiar with this failure code, you are going to have to replace the secondary air injection pump, it has a failed motor in it, the code really indicates no airflow from the pump when commanded to be on.
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
646 views
Usually answered in minutes!
What is the year, make, model and the engine size? is transmission auto or manual?
×