P0440 = evap system small leak HELP

[Cobbs]

I ran my obd on my s14, and I got a code for a evap system leak. The car is salvaged title due to it getting hit in the gas tank area. I searched the forums and Im not sure what to do


any idea of how I can fix it, Im going to get some new vaccum lines, but any other input will help out.

[g6civcx]

Start first by checking your fuel filler cap. Mak sure you turn it at least 3 clicks.

Reset codes and see if it goes away.

Go on from there.

[Pacman]

I just checked my FSM ('96 model) and theres 9 pages of diagnostics and trouble trees! I would start with the gas cap. Make sure the rubber seal is ok. Screw it, just go to Nissan and get a new gas cap. If it was hit on the passenger side rear quarter panel area, you may have a hose at the charcoal canister cracked/torn/loose. Check the vacuum lines of the EVAP system. From there, if it still sets a CEL, hit me up and I'll look through me FSM closer to help.

[hassanbakar123]

clear the code
if it comes back
smoke test it
so you don't change unnecessary stuff