Major fuel issue!

88 MARK3 · 06-01-2006, 04:03 PM

There is a leak on a little pipe in front of the engine. One of those small ones that leads to the intake I think. And I am getting an average of only 200-250km out of my tank. Plus fuel gage wouldn't top up...when I fill up gas, it only goes up to 3/4 of a tank but tank is over flowing.... Anyone have any idea of what is going on? Is the fuel system bad? Leak is only a minor small little slow leak.
Please Help!

(High flow air filter installed...could this cost any problem?)

mrnickleye · 06-01-2006, 11:46 PM

Air filter is no problem.

Need more desciption on hose leak, and photo would help, or reference to what page in tsrm.

Aver MPG = 15 city/22 hwy.

suprra_girl · 06-02-2006, 11:14 AM

the only fuel lines in the manifold are...

front of the engine... fuel rail - fuel pressure regulator down towards the block, rubber hose into "j-tube" from j-tube to fuel return line to tank
from fuel rail to cold start injector under the throttlebody
from back of engine thru manifold to fuel junction union bolt which is bolted to the engine mount

06-01-2006, 04:03 PM	#1
88 MARK3 Stock Join Date: May 2006 Location: Cananda Posts: 25	Major fuel issue! There is a leak on a little pipe in front of the engine. One of those small ones that leads to the intake I think. And I am getting an average of only 200-250km out of my tank. Plus fuel gage wouldn't top up...when I fill up gas, it only goes up to 3/4 of a tank but tank is over flowing.... Anyone have any idea of what is going on? Is the fuel system bad? Leak is only a minor small little slow leak. Please Help! (High flow air filter installed...could this cost any problem?)

06-01-2006, 11:46 PM	#2
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Air filter is no problem. Need more desciption on hose leak, and photo would help, or reference to what page in tsrm. Aver MPG = 15 city/22 hwy. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

06-02-2006, 11:14 AM	#3
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	the only fuel lines in the manifold are... front of the engine... fuel rail - fuel pressure regulator down towards the block, rubber hose into "j-tube" from j-tube to fuel return line to tank from fuel rail to cold start injector under the throttlebody from back of engine thru manifold to fuel junction union bolt which is bolted to the engine mount __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

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