Vibration under the seat on Idle only

[Rajendra]

Hi all, hoping someone can help with this issue. I have a very bad vibration under the seats on idle if i give a little push on the accelleration to just over 900rpm it goes away.
I have changed n80 valve, charcoal canister, spark plugs so far. My next step is to change the PCV.
I also noticed in the engine bay that the fuel line rattling quite alot - could this be the issue?

[ZoliWorks]

It's most likely the fuel line sunder the car rattling. mine do it too but I haven't had time to look at a fix yet.

[Rajendra]

ah I see will probably take it to the local garage since I don't have a jack or axle stand to go under and check

[ZoliWorks]

Just turn the engine on with or without the AC, let it idle and bend down next to it. You'll hear it quite clearly if it's the fuel lines.

Another thing it could be is the dogbone mount. I've managed to snap the bushing in mine and it rattled quite bad.