2001 S430 CODE P0410 SECONDARY AIR PUMP
I have had the code for secondary air pump for quite some time along with CEL , its been almost a year and im ready to do some thing about it ive bought several used ones but they don't seem to work I have also founf high restiance in the ground wire for the device , the relay is good I have two of them well any ways I was just wondering if any one knows where I can find the best price on one

I found many used ones for sale on eBay. It sounds like you may have other issues rather than the pump though. Hard to believe that you have tried two used ones and neither worked. Check for power and ground to the pump. Mine runs plenty loud when it runs.
I just still think he might be wrong I think if ground has high resistance that must mean it has a bad ground ?
The adaptor to our scan tool in the shop has gone missing
Now I can't clear the code will it go away by itself ?
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Today, I changed the Coolant Temperature Sensor. Beforehand, I removed the 2nd air pump - every thing is successful.
However, when I reinstalled the pump, the connector cracked and now I use head tube with zip tie as a workaround.
I spent something to look up the part number for this connecter but ain't found it. Thanks.


Next Monday, I check the supplier nearby and see if stock is available. I read the underneath photo at ebay, but cannot see the part no. cleary.
Next Monday, I check the supplier nearby and see if stock is available. I read the underneath photo at ebay, but cannot see the part no. cleary.
or send it by PM
My original pump went bad, I replaced with an aftermarket unit (CEL off, passed emissions) and it makes an unacceptable level of noise at startup, so I've unplugged it again. Is this what I deserve for not replacing with OEM?
Last edited by Hubbard 0; Dec 15, 2020 at 03:36 PM.






