Changed all my spark plugs today on my v6 2000 camry. Still idles a bit rough. Should I change the wires and coils too? Besides the wieres what else could cause the rough idling? Thanks

 

Clean MAF sensor.
Check for vacuum hose leaks.
Clean IAC valve and throttle body. Use only throttle body cleaner, NOT carb or brake cleaner.

 

Thanks. Well i took the car to autozone to put the ob2 reader on. I am getting codes 0440 0446 and 0441. I looked up these cods and it can be an array of things.

 

When ever i unscrew my gas cap it doesnt make that sound when relieving air pressure. There is nothing. Also, I noticed a small hole in the rubber area right below the gas cap area. Could these two be casuing these problems.