Code PO410

[chasmanz28]

i know that the code is for secondary air injection malfunction, which is either the airpump fuse and the pump itself be fried, but when i turn on my car i can hear the airpump working so it cant be the pump? what else can it be? on i side note the code pops up whenever im at WOT, like today when i pushed hard on the gas around 90mph is when i got the code, it seems to me under normal drving the check engine light doesnt come on but if i mash the pedal it does, BTW its for my 96z28

[FormulaLT1]

That code isn't for circuits its for the pump itself. Check to make sure when the RPM's rise above 2,850 it shuts off. If you can still hear it , most likely the check valve is damaged. Good Luck

John