2005 Pontiac G6 Q&A

2005 Pontiac G6 Question: how to diagnoise a po455 on my 2006 pontiac g6 3.5 engine?

I have change the gas cap with an oem piece,check the fill neck and tube and it looks ok and i have tried the drive cycle test to see if the monitors would be ready so i can go for my inspection sticker and pass the emissions test.How can i go further to diag my PO455 code? -
Answer 1
you need a smoke mach to go further.you can also test all evap components. see your mech and save time and $. -