Malfunction Code PO410

Maintenance/Repairs
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1

2001 S-10 pickup. 4.3L engine. Service engine light came on. Pocket scaner indicates code PO410, Secondary Air Injection System Malfunction. Can anyone out there enlighten me on this problem. Thanks: Airdropbill

2

Try this site.

http://www.obd-codes.com/p0410

Hope this helps.

Ed B.

3

Thanks Ed. It did help.

4

Unlike the days of yore, when the air pump was driven by the fan belt, this air pump is electric, and is not placed on the engine; but, inside a fender…

5

Thanks. I located the pump, driver side inside the fender, now I’m trying to locate the fuse for the pump. The fuse box on the fender doesn’t show a label for the pump, do you happen to know which fuse controls the pump and how its labeled?

6

This is a quote from another forum, but it looks like the Air Pump has it’s own fuse box.

Your S10 . has a small fuse box Next to the battery.
1 - air solenoid 10 amp.
1 - air fuse 30 amp.
1 - Mini relay (air relay)

On under hood main fuse block you have.
1 - fuse Engine E 10 amp.

Here is a link to a very detailed troubleshooting thread.

http://blazerforum.com/forum/showthread.php?t=19286

Here is the wiring diagram from the thread, the fuse names agree with those in the beginning of this post.

Good luck,

Ed B.