1999 Saturn SW2 p0410

There isnt just a part that always get replaced when you start the car cold can you hear the air injection pump run then shut off?Also make sure the vacuum line that across the top of the valve to the valve on top of the ac compressor is hooked up and not broken somewhere?Lets start there then we will test the valve on top of your ac ac compressor.

I fixed the secondary air injection valve so the engine light when out or disappear and then the engine light came on again but not while driving it now I also understand I need a solenoid which I will put on myself in 2 days so tell me will the engine light go out or disappear on me and I have been driving it or after driving it the computer will clean this out ?its just a question?

The solenoid with the hose and electrical connector going to it on the ac compressor your talking about? if so those rarely go bad thats a bad guess also again there isnt just a part i can tell you to replace that will for sure fix it.So again on a cold start can you hear the air injection pump run then shut off? You will need a hand vacuum pump kit to test the combination valve on top of the ac compressor those are common thing that goes bad but not a for sure fix.