Still fuel spiking WTF!

WhiteVenom · December 27th, 2010, 08:43 PM

Well i borrowed my buddies FRPS and i spiked 85psi still just tapping the gas in neutral up to 3,000 rpms or so. Just another point to when i take off my FRPS gas shoots like 5 feet in the air and my buddies never did that. Mine does it every time. I found a random vaccum line not connected to anything behind my EGR but can't find where it might go. Looks like just a breather hose or something. Any suggestions now? WTF!

Bullitt5339 · December 27th, 2010, 08:47 PM

Are you still relying on your fuel pressure gauge, or did you measure it with a mechanical gauge yet?

WhiteVenom · December 27th, 2010, 08:50 PM

Originally Posted by Bullitt5339

Are you still relying on your fuel pressure gauge, or did you measure it with a mechanical gauge yet?

still relaying on gauge. Its been in for 2 years and never read over 50 psi once until beating the shit out of the car at the track. The fuel shooting 5 foot in the air seems to relate back to the whole 85 psi idea. That gauge is 40 bucks so i guess i can drop the cash on it but seems like a waste.

Bullitt5339 · December 27th, 2010, 08:55 PM

You need to find someone with a mechanical gauge, X3 or a real scantool to monitor what your fuel pressure really is before you waste money replacing parts.

99GT35thLE · December 27th, 2010, 08:56 PM

The vacuum lines on the driver side go to the FRPS and the EGR valve. There are some vacuum lines on the EGR module but I forget what it's called.

WhiteVenom · December 27th, 2010, 08:58 PM

Originally Posted by 99GT35thLE

The vacuum lines on the driver side go to the FRPS and the EGR valve. There are some vacuum lines on the EGR module but I forget what it's called.

DPFE..

lol i know what goes to the FRPS and EGR.

WhiteVenom · December 27th, 2010, 09:05 PM

Time to play, NAME THAT VACUUM LINE!! Heres a pic. It looks like it has residue on the back on the line so it must go somewhere

Shaun03GT · December 27th, 2010, 09:07 PM

Thats wierd. Although, I would think the fuel shooting in the air would be normal.

You should see if autozone scantools let you view live data and read your Fuel pressure. 85psi jesus lol. What are you going by that says 85psi?

stal94gt · December 27th, 2010, 09:09 PM

the only hoses that i know that are made that size that are around that area are the 2 lines that go from the egr pipe to the dpfe, or the evap hose going into the manifold. look down your egr pipe there are 2 fittings where the dpfe sensor goes

WhiteVenom · December 27th, 2010, 09:11 PM

Originally Posted by Shaun03GT

Thats wierd. Although, I would think the fuel shooting in the air would be normal.

You should see if autozone scantools let you view live data and read your Fuel pressure. 85psi jesus lol. What are you going by that says 85psi?

I can get 110psi if i actually rev it up. 85 is just when i tap the gas. My autometer gauge is telling me 85 psi. It runs and drives perfect with no issue. To be 100% honest i would not even know i had a problem if it were not for the gauge readings.

stal94gt · December 27th, 2010, 09:13 PM

Originally Posted by WhiteVenom

I can get 110psi if i actually rev it up. 85 is just when i tap the gas. My autometer gauge is telling me 85 psi. It runs and drives perfect with no issue. To be 100% honest i would not even know i had a problem if it were not for the gauge readings.

try swaping the fpdm out of your buddys car, yours may have over heated and fryed its self

Shaun03GT · December 27th, 2010, 09:18 PM

I was acually going to say maybe its fpdm related? Or maybe your gauge is just way the fuck off. Id try to view live data with SCT or a scantool man. But, if you dont have access, do what stal said

WhiteVenom · December 27th, 2010, 09:18 PM

I found where the line went. It went on that DPFE. Theres like two hoses and a plug on the bracket. Still didnt fix my fuel spiking though

vaccum line is in though!

WhiteVenom · December 27th, 2010, 09:21 PM

Maybe i dont have it connected in the trunk or something i guess?

stal94gt · December 27th, 2010, 09:24 PM

do you have a bap on the car?

WhiteVenom · December 27th, 2010, 09:27 PM

Originally Posted by stal94gt

do you have a bap on the car?

no idea..

I looked in my trunk everything is connected. How come that red button is like stuck down? i cant even push it. It wont move when i do its like jammed in or something?

Shaun03GT · December 27th, 2010, 09:32 PM

You dont know if you have a boost a pump? Check your trunk for one.

Also, the red button is the inertia switch. If its pushed down, it means it shut the fuel pump off. So Idk something doesnt seem right?

WhiteVenom · December 27th, 2010, 09:34 PM

Originally Posted by Shaun03GT

You dont know if you have a boost a pump? Check your trunk for one.

Also, the red button is the inertia switch. If its pushed down, it means it shut the fuel pump off. So Idk something doesnt seem right?

yeah it wont move. Its like someone jammed it down or something. Give me about 10 mins guys and i will take a picture of the area. I dont even know what it has for fuel pumps. Kid told me "i think it might have termi pumps but i would'nt know".

stal94gt · December 27th, 2010, 09:36 PM

the button is supposed to be down. when it is poped up it means it needs to be reset.

WhiteVenom · December 27th, 2010, 09:38 PM

Looks so nice back there...

December 27th, 2010, 08:43 PM	#1
WhiteVenom MM Fanatic 99 Cobra :p 12.36@119.35 Join Date: Oct 2010 Location: Lapeer Posts: 4,541 iTrader: 0 reviews	Still fuel spiking WTF! Well i borrowed my buddies FRPS and i spiked 85psi still just tapping the gas in neutral up to 3,000 rpms or so. Just another point to when i take off my FRPS gas shoots like 5 feet in the air and my buddies never did that. Mine does it every time. I found a random vaccum line not connected to anything behind my EGR but can't find where it might go. Looks like just a breather hose or something. Any suggestions now? WTF! __________________ MM COBRA CLUB #80 SRA SWAP WRITE UP!

December 27th, 2010, 08:56 PM	#5
99GT35thLE Hardcore Enthusiast 1999 GT 35th LE Join Date: Dec 2009 Location: Jacksonville, Florida Posts: 1,428 iTrader: 0 reviews	The vacuum lines on the driver side go to the FRPS and the EGR valve. There are some vacuum lines on the EGR module but I forget what it's called. __________________ Drive it like you stole it

December 27th, 2010, 09:05 PM	#7
WhiteVenom MM Fanatic 99 Cobra :p 12.36@119.35 Join Date: Oct 2010 Location: Lapeer Posts: 4,541 iTrader: 0 reviews	Time to play, NAME THAT VACUUM LINE!! Heres a pic. It looks like it has residue on the back on the line so it must go somewhere __________________ MM COBRA CLUB #80 SRA SWAP WRITE UP!

December 27th, 2010, 09:07 PM	#8
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,447 iTrader: 12 reviews	Thats wierd. Although, I would think the fuel shooting in the air would be normal. You should see if autozone scantools let you view live data and read your Fuel pressure. 85psi jesus lol. What are you going by that says 85psi? __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

December 27th, 2010, 09:18 PM	#12
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,447 iTrader: 12 reviews	I was acually going to say maybe its fpdm related? Or maybe your gauge is just way the fuck off. Id try to view live data with SCT or a scantool man. But, if you dont have access, do what stal said __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

December 27th, 2010, 08:47 PM	#2
Bullitt5339 Hardcore Enthusiast 2001 Bullitt 12.25@110.4 Join Date: Mar 2010 Location: North Carolina Posts: 2,599 iTrader: 1 reviews	Are you still relying on your fuel pressure gauge, or did you measure it with a mechanical gauge yet?

December 27th, 2010, 08:55 PM	#4
Bullitt5339 Hardcore Enthusiast 2001 Bullitt 12.25@110.4 Join Date: Mar 2010 Location: North Carolina Posts: 2,599 iTrader: 1 reviews	You need to find someone with a mechanical gauge, X3 or a real scantool to monitor what your fuel pressure really is before you waste money replacing parts.

December 27th, 2010, 09:09 PM	#9
stal94gt I Post Entirely Way Too Much 2003 mustang v6 ;) slow Join Date: May 2010 Location: eglin afb florida Posts: 10,197 iTrader: 2 reviews	the only hoses that i know that are made that size that are around that area are the 2 lines that go from the egr pipe to the dpfe, or the evap hose going into the manifold. look down your egr pipe there are 2 fittings where the dpfe sensor goes

December 27th, 2010, 09:21 PM	#14
WhiteVenom MM Fanatic 99 Cobra :p 12.36@119.35 Join Date: Oct 2010 Location: Lapeer Posts: 4,541 iTrader: 0 reviews	Maybe i dont have it connected in the trunk or something i guess? __________________ MM COBRA CLUB #80 SRA SWAP WRITE UP!

December 27th, 2010, 09:24 PM	#15
stal94gt I Post Entirely Way Too Much 2003 mustang v6 ;) slow Join Date: May 2010 Location: eglin afb florida Posts: 10,197 iTrader: 2 reviews	do you have a bap on the car?

December 27th, 2010, 09:32 PM	#17
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 7.92 @ 91.13mph 1/4 - 12.21 @ 115.84mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 13,447 iTrader: 12 reviews	You dont know if you have a boost a pump? Check your trunk for one. Also, the red button is the inertia switch. If its pushed down, it means it shut the fuel pump off. So Idk something doesnt seem right? __________________ Vortech V1 Intercooled @ 11psi 394rwhp/392rwtq @ 9.5psi 415rwhp/400rwtq @ 11psi on Methanol Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

December 27th, 2010, 09:36 PM	#19
stal94gt I Post Entirely Way Too Much 2003 mustang v6 ;) slow Join Date: May 2010 Location: eglin afb florida Posts: 10,197 iTrader: 2 reviews	the button is supposed to be down. when it is poped up it means it needs to be reset.

December 27th, 2010, 09:38 PM	#20
WhiteVenom MM Fanatic 99 Cobra :p 12.36@119.35 Join Date: Oct 2010 Location: Lapeer Posts: 4,541 iTrader: 0 reviews	Looks so nice back there... __________________ MM COBRA CLUB #80 SRA SWAP WRITE UP!

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