P1456 evap emmissions control fuel system leak

[Quashish]

On a friends 98 accord. Check engine light has been on for a while. I cleared it for her. And we tried a new gas cap but problem is still there. Ive heard it could be a few things. Filler neck seems fine anyone else have any ideas?



Just noticed her gas tank doesn't have that metal flap like ours. Is it supposed to be like that? I couldn't feel anything broken inside the hole where it should be

[Quashish]

Just gunna go ahead and bump this

[wed3k]

start checking any hoses to the canister otherwise you're gonna have to have the system smoked.

[N9netwoAccord]

9 out of 10 times the canister vent shut valve is leaking on that style accord. Unless you have a smoke machine that is what I would do, at least here in NH, the bolts that bolt the CVS to the canister are usually rusted and impossible to get out, so I always end up changing the canister and the CVS.

[Quashish]

where is the vapor canister at?

[accordztech]

If anything take it to a shop and smoke it out. You will find the leak.

[Quashish]

thats the thing her dad owns a detail/repair shop where i used to work. and they cant fix it for her... im like whats up with that?! they cant find where its leaking and i think they have smoked it before. so yah were both po just trying to help her out ya know.

[wed3k]

early 6th gens have them on the firewall.

[Quashish]

Ok cool she just got off work so il see if I can get over there and check it out

[N9netwoAccord]

early 6th gens have them on the firewall.

Wrong, they are under the car under the rear seat area. It's the big black looking box, and the CVS is the thing with the biggest hose going to it.

[wed3k]

thats odd, i may be thinking of the 01 civics

[N9netwoAccord]

thats odd, i may be thinking of the 01 civics

If 01 is the newer style with the 1.7 (I think they come with the 1.6's too I don't know) Then those are also under the car, anything 98+ is under the car if I remember correctly.

[accordztech]

thats the thing her dad owns a detail/repair shop where i used to work. and they cant fix it for her... im like whats up with that?! they cant find where its leaking and i think they have smoked it before. so yah were both po just trying to help her out ya know.

dont assume what someone else told you. Always confirm it for yourself. You dont know how many times that I have been bonned from that.

Id go around with a hose pinch and see if you can isolate where it is comming from. It can be they tested it without doing that and it showed no leak, but once you start claming some hoses to create more pressure you may find it.