CEL p0440 back on after gas cap replacement

[blacksambo]

What's an air filter valve?

[nocturnalVX]

What's an air filter valve?

Some goofy solenoid thingamabob (possibly a doohickey... I'm not quite sure) that causes CEL code P0440 (EVAP system malfunction) when it goes bad.

[Ldub]

Some goofy solenoid thingamabob (possibly a doohickey... I'm not quite sure) that causes CEL code P0440 (EVAP system malfunction) when it goes bad.

Could you PLEASE get a part # for that...

[nocturnalVX]

I posted the part # if you really need it, but Merlin can let you know for sure if it is a thingamabob or a doohickey. See you soon bro!

[nocturnalVX]

Here is that thread we we talking about last night. I hope it helps getting Suzie better.

Oh, and it turns out it is not a thingamabob OR a doohickey... it's a whatzitznutz. FYI

[Ldub]

Here is that thread we we talking about last night. I hope it helps getting Suzie better.

Oh, and it turns out it is not a thingamabob OR a doohickey... it's a whatzitznutz. FYI

Thanx Gill...U Da Dood...

[tom4bren]

I think that 'whatzitznutz' is called the purge valve solenoid.

The little research I did though indicates that it could still be (in order of likelihood):

non-OEM gas cap
Cracked evap canister
split hose or leaky connection
purge valve solenoid
wiring harness or bad connection

I still get the P0442 code on the Amigo regularly (but only when the fuel drops below 1/2 tank). I'm running an aftermarket gas cap but should probably switch back to the OEM since the replacement didn't fix the problem.

The US.RV shop manual has pages & pages on the subject. It just hasn't bothered me enough to try & chase down that gremlin yet.

[Ldub]

I think that 'whatzitznutz' is called the purge valve solenoid.

The little research I did though indicates that it could still be (in order of likelihood):

non-OEM gas cap
Cracked evap canister
split hose or leaky connection
purge valve solenoid
wiring harness or bad connection

I still get the P0442 code on the Amigo regularly (but only when the fuel drops below 1/2 tank). I'm running an aftermarket gas cap but should probably switch back to the OEM since the replacement didn't fix the problem.

The US.RV shop manual has pages & pages on the subject. It just hasn't bothered me enough to try & chase down that gremlin yet.

My Amigo has had the ck engine light (maybe it's a Calvin Klein sublim ad) on since about 1 day after I brought it home from the used car lot where I found her. Had the code read, & same-same.
Pulled tha ol' switcheroo VX-Amigo re: gas cap...no change...

The only thing that makes the light go off for any appreciable amount of time is -15 degF & lower. Mebbe that's just too dam cold for tha light...to emit.....

But that kajigger what Gill wuz talk'n about sounds like a promising next step...