[Luke80146]

My 2015 Volt is throwing a P2418 code. I replaced the entire evap assembly (See picture), but the code persists. I can clear it, but it comes back on the next startup. Any ideas?

 

[somms]

FWIW: According to the Gen1 Service Manual, if you have already replaced the Q63 this would leave the K20 Engine Control Module or possibly wiring as the possible culprit...

 

[oldstuff]

My 2015 Volt is throwing a P2418 code. I replaced the entire evap assembly (See picture), but the code persists. I can clear it, but it comes back on the next startup. Any ideas? View attachment 154745

Mine had a rip in the filler hose where it attached to the tank causing a pressure leak and didn't lose any gas if I didn't top off the tank.

 

[Luke80146]

Did it throw a P2418 code as well?

 

[Luke80146]

The resolution to this was to replace the Vapor Canister Purge Valve. It is located under the hood, NOT in the rear of the vehicle under the trunk with the reset of the evap system. 1 bolt, 1 hose connection, and 1 electrical connection. Took 2 minutes to replace.

 

[scottf200]

The resolution to this was to replace the Vapor Canister Purge Valve. It is located under the hood, NOT in the rear of the vehicle under the trunk with the reset of the evap system. 1 bolt, 1 hose connection, and 1 electrical connection. Took 2 minutes to replace.

Some great DIY work. Well done!