5.0 vented or non-vented

D

dadslx

Member

Nov 11, 2006

59

0

6

Mar 25, 2009

#1

• Mar 25, 2009

• #1

hello i'm in the process of converting my 69 cougar to efi and im done everything else but now starting in the actual fuel line install. i have read tons of write ups but none of them seem to touch base on the venting setup..isthe venting more of a emissions thing or a safety thing? is a vented gas cap somthing i can use or is the fuel vapor canister mandatory for efi setups?..thanks

 

The Shape

Founding Member

Jan 11, 2002

2,224

8

49

East ARKANSAS Delta

Mar 25, 2009

#2

• Mar 25, 2009

• #2

The charcoal canister is definently not mandatory, mine is laying in my storage shed. Some say without it you will have terrible fuel odors , but I have never noticed a difference.

 

D

dadslx

Member

Nov 11, 2006

59

0

6

Mar 25, 2009

#3

• Mar 25, 2009

• #3

vent

so i can run my main fuel feed and return and thats it..no purge or vents?

 

The Shape

Founding Member

Jan 11, 2002

2,224

8

49

East ARKANSAS Delta

Mar 25, 2009

#4

• Mar 25, 2009

• #4

I am no expert wait for more opinions. My tank is still vented, but the line is just open under tha car instead of being hooked to the charcoal canister. I would THINK the vented cap would serve the same purpose, but I am not sure.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,210

17,894

224

Massachusetts

Mar 25, 2009

#5

• Mar 25, 2009

• #5

If the tank is not vented it can pressurize.

You can run a vented gas cap, but it's not emmissions legal to vent gasoline vapors into the atmosphere.

The charcoal canister is emmissions legal since it draws the excess vapor and burns it in the engine.