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Old 02-22-2009, 08:26 AM   #1 (permalink)
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P0410 error code

Just had my 2000 Impala scanned at Advance Auto Parts and I have a code P0410. The book he had told us what the code was but not what it means. I now know it means a problem with part of the emission control system. Is this something only the dealer can fix? Is it required on this car or can the code be reset/blocked. Does this malfunction affect other things on the engine? Money is too tight to just go trying things.

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Old 02-22-2009, 10:21 AM   #2 (permalink)
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The parts of this entry are copied from: http://www.obd-codes.com/p0410 Please check the link for the full article.

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.

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.

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!

* Replace the AIR pump AND one-way check valve
* Test and clean the AIR pump AND test and replace the one-way air check valve
* Replace the AIR pump inlet hose
* Replace the AIR pump fuse (found under the hood)


1977 Chevrolet Impala Sedan, 5.0L, TH200, 2.56:1, 106K miles, 37 Lifetime Warranty Parts.
1989 GMC C1500 Sierra ECSB 5.7L, HM290, 3.08:1, 328K miles, 1 Lifetime Warranty Parts.

Last edited by 77Impala; 02-22-2009 at 10:24 AM.. Reason: clarifing
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Old 03-02-2009, 09:18 PM   #3 (permalink)
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this would be why I'm starting to turn my interest toward emissions exempt vehicles

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Info.com - P0410 2000 impala - www.Info.com This thread Refback 06-03-2011 08:16 AM
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