guy's need help for a friend p0410 code
 

buddy has a 2002 z28 camaro and ses light came on brought to a local auto part store they gave him p0410 code meaning secondary air system performance after looking we found a small leak on the hose from the pcv valve to the intake changed that and the light still on and know every so often will be not crank first tryjust roll over but turn key back second try and fire right up should he be worried i had a similar problem but mine was a fuel pump fuse we checked his everything seems fine any help?

thanks!

You think that would have any thing to do with it not staring some times on first crank or just the reason for light staying on?

Not starting on first crank is usually a fuel pressure issue. Put a FP gauge on the rail and see what it goes to KOEO. Should go to 58 psi and hold it.