Small pipe from the air box

[godsANGER]

This should be a easy one had my air box off about 2weeks ago, since i have had not great MPG not terrible but not as good as i was getting.
Noticed today that i had forgot to reattach the small pipe which goes to the air box would this account for the Bad MPG ?

Thanks
Mike

[scarr89]

Depends which pipe you are speaking of.

I have one on my DERV but was able to remove it when I removed some of the valves. It depends on what is using it and why, it may just be a means as to 'vent to atmosphere' for some unwanted pressure.

[godsANGER]

Depends which pipe you are speaking of.

I have one on my DERV but was able to remove it when I removed some of the valves. It depends on what is using it and why, it may just be a means as to 'vent to atmosphere' for some unwanted pressure.

Thanks its was just this pipe.