calibrating the FPSS
11-04-2007, 08:20 PM
#1
On The Tree
Thread Starter
iTrader: (3)
Join Date: Nov 2006
Posts: 143
Likes: 0
Received 0 Likes
on
0 Posts
calibrating the FPSS I think my fpss is miscalibrated. It turns the kit off, but I never lean out, so fuel pressure should be fine. Anybody know how to recalibrate this thing?
11-05-2007, 09:45 AM
#2
On The Tree
iTrader: (7)
Join Date: Feb 2004
Location: Anna, TX
Posts: 108
Likes: 0
Received 0 Likes
on
0 Posts
You could hook it to a regulated air compressor and see when it switches. If it is the type I am thinking of, there is a round rubber plug on the top. You can pry it out and turn the adjustment screw.
11-05-2007, 10:40 AM
#3
Guest
Posts: n/a
YOu will need two people for this unless you can get it by yourself.
1st - Make sure the bottle is turned OFF
2nd - Take the nozzle, nozzles or plate and take them off the car with the lines hooked up and put it into a bucket.
3rd - Acitvate the system weather it is via the WOT Switch, button or just taking the wires loose and hooking them to ground and touching the positive to activate the Fuel noid ( Dont hold it to positive ) for 6 sec intervals then stop and wait at least 30 sec's before the next 6 sec interval
3rd and 4th combined - While you have the fuel noid activated during the 6 sec interval you will to adjust the screw on the top of the FPSS. Repeat process untill you see the fuel coming out of the nozzle, nozzles or plate start to sputter. Once you see the sputtering you will need to turn the screw about a 1/4 to 1/2 a turn the opposite way and the FPSS should be set.
-Chris
1st - Make sure the bottle is turned OFF
2nd - Take the nozzle, nozzles or plate and take them off the car with the lines hooked up and put it into a bucket.
3rd - Acitvate the system weather it is via the WOT Switch, button or just taking the wires loose and hooking them to ground and touching the positive to activate the Fuel noid ( Dont hold it to positive ) for 6 sec intervals then stop and wait at least 30 sec's before the next 6 sec interval
3rd and 4th combined - While you have the fuel noid activated during the 6 sec interval you will to adjust the screw on the top of the FPSS. Repeat process untill you see the fuel coming out of the nozzle, nozzles or plate start to sputter. Once you see the sputtering you will need to turn the screw about a 1/4 to 1/2 a turn the opposite way and the FPSS should be set.
-Chris
11-05-2007, 11:26 AM
#4
TECH Enthusiast
iTrader: (32)
Join Date: Aug 2005
Location: The great state of Tejas!
Posts: 638
Likes: 0
Received 0 Likes
on
0 Posts
YOu will need two people for this unless you can get it by yourself.
1st - Make sure the bottle is turned OFF
2nd - Take the nozzle, nozzles or plate and take them off the car with the lines hooked up and put it into a bucket.
3rd - Acitvate the system weather it is via the WOT Switch, button or just taking the wires loose and hooking them to ground and touching the positive to activate the Fuel noid ( Dont hold it to positive ) for 6 sec intervals then stop and wait at least 30 sec's before the next 6 sec interval
3rd and 4th combined - While you have the fuel noid activated during the 6 sec interval you will to adjust the screw on the top of the FPSS. Repeat process untill you see the fuel coming out of the nozzle, nozzles or plate start to sputter. Once you see the sputtering you will need to turn the screw about a 1/4 to 1/2 a turn the opposite way and the FPSS should be set.
-Chris
1st - Make sure the bottle is turned OFF
2nd - Take the nozzle, nozzles or plate and take them off the car with the lines hooked up and put it into a bucket.
3rd - Acitvate the system weather it is via the WOT Switch, button or just taking the wires loose and hooking them to ground and touching the positive to activate the Fuel noid ( Dont hold it to positive ) for 6 sec intervals then stop and wait at least 30 sec's before the next 6 sec interval
3rd and 4th combined - While you have the fuel noid activated during the 6 sec interval you will to adjust the screw on the top of the FPSS. Repeat process untill you see the fuel coming out of the nozzle, nozzles or plate start to sputter. Once you see the sputtering you will need to turn the screw about a 1/4 to 1/2 a turn the opposite way and the FPSS should be set.
-Chris
That is exactly how I planned on doing mine once we get around to it.
I might try out the plate kit(since it's on the car), or I might just wait until we get the DP installed to have a bit of fun!
11-05-2007, 12:53 PM
#5
On The Tree
Thread Starter
iTrader: (3)
Join Date: Nov 2006
Posts: 143
Likes: 0
Received 0 Likes
on
0 Posts
That is a good post, however, the kit always runs at first, my initial fuel pressure is enough to make it work, but some times at the upper end of the rpm the system turns off. I was assuming this was the fpss and that it was set just slightly too high. maybe not?
11-05-2007, 02:40 PM
#6
12 Second Club
iTrader: (26)
Join Date: Apr 2005
Location: Brockport NY
Posts: 1,456
Likes: 0
Received 0 Likes
on
0 Posts
I would say if you set it like chris said you should be fine. If that does not work then i would get a fuel pressure gauge and see if it is dropping under WOT. If it is you probably need a new fuel pump.