Code PO456

[Truckmike]

Hello All I posted earlier about evap leak could it be something else? how can you check the fuel cap to see it it is leaking? I have filled my tank twice in the last week and half.

 

[tmds3]

In Tx you can take it to an inspection station and they will usually test it for free, as that is part if the inspection test in major metro areas.

Other than that just purchasing another one to see if code goes away/

 

[Truckmike]

Hello All I replaced the gas cap with OEM and reset ECM code cleared thanks for all the help