Trouble code P0440 means:Evaporative emission control system malfunction
Trouble code P440 on a 2003 Dodge Ram indicates a problem with the evaporative emissions control system. To fix it, first inspect the gas cap for damage or ensure it's properly tightened. Next, check for any leaks or blockages in the EVAP system components, such as hoses and the charcoal canister. If necessary, replace any faulty parts and use an OBD-II scanner to clear the code and verify the issue is resolved.
plug a obd 2 code reader into your car and activate it.
canister vent or purge valve malfuction vacuum leak or sticking vlave
its a misfire on the #2 cylinder
What does obd code P0740 mean
Yes a OBD 2 scanner/reader will work on your car
Bank #2 fuel system lean.
Cylinder #2 misfire detected.
Trouble code P0174 means:System too lean (Bank 2)
Evaporative Emission Control system vent control Circuit po446 code
Trouble code P0335 means: Crankshaft position sensor "A" circuit malfunction
P0330 - Knock Sensor 2 Circuit Malfunction (Bank 2)