P0457 Mazda -

Question

what would be my next step if a new gas cap did not solve the po457 code on my mazda 2002 tribute

Answer 1

P0457 Evaporative emission system malfunction

With a new fuel cap installed and you still code P0457, this may be with the purge not able to perform, this usually code when there was a recent airfilter replacement or inspection, what happens is the hose for the purge tends to get knock off. you would need to check the connection of the purge