• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Dtc p0440

krippled

New member
Hey, My car came up with a DTC of P0440. Ive had intermittent trouble filling up my gas tank. the pump will shut off before the tank is even close to full. Does that have anything to do with it? I've changed the gas cap and it still comes back. Any ideas what could be the problem? Thanks
 


The definition to the code from "http://www.obd-codes.com" with a spelling error corrected is:
This indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

It seems there is a leak somewhere. As with filling up the gas tank, I have had that problem at certain gas stations. I just insert the pump nozzle in on a different angle and it works fine.
 
Back
Top