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PO 410 engine code secondary air injection S70

posted by  Paulii on  Wed Mar 29 11:15 CST 2006
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last visit: Fri Jun 6 03:04 CST 2014
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Hello all, I have been chasing this trouble code for a few weeks now and it seems to be taking longer to turn on now with a few replacement parts, but it still comes on after a 140 to a 170 miles of driving. It is driving me nuts!
I have replaced the check valve, I have cleaned the connector and checked the air pump. I have replaced the mounts on the air pump. I have checked the vacuum line to and from the solonoid. I have cleaned and lubed the connector to the solonoid. I have checked the solonoid to make sure it works. I replaced the O2 sensor because it was reading a little slow, so far the light still comes on. Anybody have any insight to this simple problem. Thanks, Pauli








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    PO 410 engine code secondary air injection S70

    posted by  someone claiming to be jon alias jon on  Fri Mar 31 12:03 CST 2006 [RELATED]

    Did you make the pump run?








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    PO 410 engine code secondary air injection V70-XC70 1998

    posted by  RedAlrt on  Thu Mar 30 06:59 CST 2006
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    last visit: Thu Apr 26 12:11 CST 2012
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    With all the parts you've changed, seems to me that the only thing left is the air pump itself..








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      PO 410 engine code secondary air injection V70-XC70 1998

      posted by  Paulii on  Mon Apr 3 06:20 CST 2006
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      last visit: Fri Jun 6 03:04 CST 2014
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      That works too! I have just changed the relay for the electric blower incase that is the problem. I will drive around for the next couple days and see if that will cure the elusive trouble code.








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        PO 410 engine code secondary air injection V70-XC70 1998

        posted by  someone claiming to be bl on  Mon Apr 3 07:58 CST 2006 [RELATED]


        Have you checked the pump for water? The way the system is desigined (volvo engineers didn't figure in that water runs down hill), the pump gradually fills with water eventually shorting it out. As the water collects in the outflow section, you may have enough there to restrict flow. Just a thought. Mine has about a half pint of water inside before it shorted out so I know it had to be obstructing the outflow. Can try drilling 1/8th " drain hole and see what runs out or remove it and dump it out.

        bl







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