Vortech FMU and you...
#31
EvoM Staff Alumni
iTrader: (8)
Join Date: Feb 2002
Location: Long Island
Posts: 7,701
Likes: 0
Received 0 Likes
on
0 Posts
Your fuel pressure should be around 40psi I believe. 38psi if I remember correctly. You MUST have a leak somewhere in your fuel system. I'd recommend checking the injectors seals . Check the o-rings on the feed end of the innjector and the seals where the injector sits in the intake manifold. It'll cost about next to nothing to replace both.
#34
EvoM Staff Alumni
iTrader: (8)
Join Date: Feb 2002
Location: Long Island
Posts: 7,701
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by AirQuez
Anyone has run 12:1 with stock injectors before? Maybe you are running past the injector duty cycle and they cant keep up.
#35
EvoM Staff Alumni
iTrader: (8)
Join Date: Feb 2002
Location: Long Island
Posts: 7,701
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Lancerguy'03
yeah im goin to pull injectors out sometime soon....just need to find time.....and im not sure how to do it, so i have to have time w/ my buddy to help.
#37
EvoM Staff Alumni
iTrader: (8)
Join Date: Feb 2002
Location: Long Island
Posts: 7,701
Likes: 0
Received 0 Likes
on
0 Posts
No, you don't want to crank the car at all. Don't even put it in key-on. Both turn on the fuel pump. I'm pretty sure just opening the cap on the fuel tank is enough. It's not going to kill you to spill a little fuel, and it evaporates pretty quickly. But if you have any electricity/sparks or fire nearby...it'd be wise not to risk it.
#39
EvoM Staff Alumni
iTrader: (8)
Join Date: Feb 2002
Location: Long Island
Posts: 7,701
Likes: 0
Received 0 Likes
on
0 Posts
Yeah, pretty much. The two bolts that hold the fuel rail down to the intake manifold. Oh! I almost forgot. There are two black plastic spacers that are about 3/4" tall. Don't lose them. I mean you don't NEED them per se, but they keep your injectors at the proper angle, so it's best not to drop them and then run them over.
#40
Evolved Member
Thread Starter
iTrader: (8)
Join Date: Nov 2002
Location: Dallas, Texas
Posts: 1,873
Likes: 0
Received 0 Likes
on
0 Posts
lol ok.....im try this when i get sometime this week. just got outta Army and back home so i got other **** to take care of. but ill keep everyone posted on this.
#41
Evolved Member
Thread Starter
iTrader: (8)
Join Date: Nov 2002
Location: Dallas, Texas
Posts: 1,873
Likes: 0
Received 0 Likes
on
0 Posts
ok well i took arpart the FMU and it looked fine.....so i put it back in....no change....then last night i swaped it out w/ a 10:1 FMU....no change....so if its not the FMU what could it be?
#42
EvoM Guru
iTrader: (26)
Fuel pump would be my next guess... change that and see if it corrects it. Also when you installed the fuel pump you did put the screen/sock back on right? If you don't do that any debris that gets in the tank(from filling up/etc) will get sucked into your fuel system.
Try switching the pump to a new one... you said you had a spare right?
Try switching the pump to a new one... you said you had a spare right?