Codes P0171, P0174, P0455 and P0441. Within the last couple of months I did change the spark plugs myself, and so I replaced the intake plenum gasket, had all kinds of hoses off, etc. I did take the throttle body off and forgot to buy a new seal so I did leave it there. ...
P0455: Evaporator Emission Control System Leak Detected P0441: Evaporator Emission Control System Incorrect Purge Flow How to Diagnose the C1201 Code If you want to diagnose the C1201 Toyota trouble code, you should follow the same steps as the professional mechanics. As a generic code, the di...