mazda 6 repair advice

[stsquared]

New to forum. 2004 maxda6 3.0L V6

Engine light popped on, I have a P0443 EVAP control system purge control valve circuit malfunction.

Any suggestions for diagnostics and / or repairs?

Is there a repair manual for the car that details these things?

a little tired of getting hosed at the dealer. I have gear head buddies who can help if I know where to start.

thanks

cheers t