FP at 27 psi!!!?
07-16-2009, 02:22 PM
#1
TECH Apprentice
Thread Starter
iTrader: (5)
Join Date: Oct 2008
Location: Cary, NC
Posts: 333
Likes: 0
Received 0 Likes
on
0 Posts
FP at 27 psi!!!? I just looked at my fp gauge under my hood. KOEO SHOULD sit at around 60psi, i turn the key and it went up to 30psi and dropped back to zero in a second. I cranked it up and its at 27 psi!!!! I couldn't figure out why it was throwing lean bank codes and taking forever to start until now. WTF. could it be my stock FP reg. in the tank?
07-16-2009, 07:47 PM
#3
TECH Apprentice
iTrader: (19)
Join Date: Sep 2007
Location: San Antonio
Posts: 356
Likes: 0
Received 0 Likes
on
0 Posts
well i know on a few cars with that problem. ive seen the vaccum tube at the back of the car coming out of the tank to crack. causing pressure bleed off. its just a shitty little plastic one it should run from the pump to to the filler neck where it vents to the atmosphere. might want to check that. that fuel pressure is quite low. check for any fuel leaks on the lines. they will be cleaner than other parts of the lines.
07-17-2009, 01:57 AM
#4
Is it a stock fuel pump? It sounds like what happend to me. I Had a walbro at the time..and the rubber fuel hose clamp had loosened and blew the line right off the pump. Which in return was causing a leak in the tank.
07-17-2009, 01:08 PM
#5
TECH Apprentice
Thread Starter
iTrader: (5)
Join Date: Oct 2008
Location: Cary, NC
Posts: 333
Likes: 0
Received 0 Likes
on
0 Posts
Fixed it. turned out the rubber fuel line popped of on the top where it connects to the sender assembly. 
Im suprised I had any fuel pressure and it even started like that. thanks for the help everyone
Im suprised I had any fuel pressure and it even started like that. thanks for the help everyone 
07-18-2009, 09:32 AM
#7
TECH Apprentice
Thread Starter
iTrader: (5)
Join Date: Oct 2008
Location: Cary, NC
Posts: 333
Likes: 0
Received 0 Likes
on
0 Posts
the problem was that I couldnt get the line all the way up on the fitting, even now when I fixed it, even using silicone lube, motor oil, spit. i think line is not the right size but its the size that came with the pump and the size that fits on the pump fitting.
Trending Topics
07-29-2009, 07:48 PM
#8
TECH Apprentice
iTrader: (19)
Join Date: Sep 2007
Location: San Antonio
Posts: 356
Likes: 0
Received 0 Likes
on
0 Posts
well if its the line im thinking off, plastic? isnt this line a "press fit" line i guess you would call it. heated shoved over the line and it takes that shape? my brain is a little fried from work but i beleive thats how its done. or why not try a hose clamp?