Should this hole be there on my air box?

[Zoltan]

What's this? Should it be there?

[Extra 300 Driver]

Yes, infact there should be a small hose going in there, from the fuel tank

[jbvipercerb]

If its a 4.2 and that is the left hand air box it should have a small push on pipe fitting in the hole, there will be a small bore piece of rubber pipe near it (probablly with the fibre glass pipe fitting still in the end) I thought it went to the ecu for barometric pressure reading.
Just glue/fibreglass it back into the airbox, but don't block the centre hole up.

[Extra 300 Driver]

jbvipercerb said:

If its a 4.2 and that is the left hand air box it should have a small push on pipe fitting in the hole, there will be a small bore piece of rubber pipe near it (probablly with the fibre glass pipe fitting still in the end) I thought it went to the ecu for barometric pressure reading.
Just glue/fibreglass it back into the airbox, but don't block the centre hole up.

Yes thats it, its not from the tank but to the ECU

[Zoltan]

Ok, I've located the hose and sealed it to it's place.
When we're on the subject missing hoses, should there be a hose here?

[jbvipercerb]

No, that's the fuel pressure regulator, the side with the pipe on is fuel pressure then there's a diaphram (can't spell) then a spring to control the fuel pressure in the fuel rail. The back side is just open to atmosphere.