Fuel tank vent problem

J

jrome01

Newbie

Joined

Jun 14, 2009

Messages

12

• Sep 3, 2009

• #1

I hooked up the fuel tank vent to the plastic bottle thing and charcole canister, ran a line from canister to air cleaner. My bronco ran terrible, had low erratic fuel pressure, (running a TBI). Plugged the vent line at the gas tank runs fine now, what gives?? 5/16 for return line, 5/16 vent, 3/8 fuel pickup.

 

R

ransil

Bronco Guru

Joined

Sep 6, 2003

Messages

8,122

• Sep 3, 2009

• #2

Did you use manifold vacuum or ported vacuum??
Ford EFI uses a valve controlled by the computer to purge.

 

OP

OP

J

jrome01

Newbie

Joined

Jun 14, 2009

Messages

12

• Sep 3, 2009

• #3

I just ran a hose from the charcoal canister, 5/8 size hose; and connected straight to the air cleaner. I'm also using a GM TBI setup.