Upgraded pumps and rails, still running out of fuel at 5500rpms - 2003-04 Mach 1 Registry Owners Club

626socalstang · 10-09-2013, 01:52 AM

I took the Mach to get a tune today and come to find out I having the same problem I did with the stock cobra pumps and rails...The tuner is thinking either one of t!he pumps is bad, fuel filter needs to be replaced, or I have a pinch in the fuel line.. I don't know when the last time I replaced the filter so I'll be doing that first thing, and was wondering if anyone has come across an issue like this and had some advice?

TKat13 · 10-09-2013, 01:00 PM

Had a friend with a similar issue, the hose inside the tank that connected to his pump was loose. Clamp was not tight.

medrick · 10-09-2013, 11:29 PM

whats your setup?

blown03Mach1 · 10-10-2013, 06:02 PM

Quote:

Originally Posted by medrick

whats your setup?

What he said

626socalstang · 10-11-2013, 02:17 AM

Division Xrails, Dual DivisionX 340 pumps, KB BAP with the wire upgrade.

blown03Mach1 · 10-11-2013, 05:57 PM

Quote:

Originally Posted by 626socalstang

Division Xrails, Dual DivisionX 340 pumps, KB BAP with the wire upgrade.

I think what he meant was engine wise.

626socalstang · 10-12-2013, 05:53 PM

ooooh, stock block bored to 302, stroker kit, D1 with 8rib pushing 16lbs, 98 cobra cams

Mach828 · 10-12-2013, 09:58 PM

What injectors do you have?

Are you running dual 340s? Do you have dual fpdms?

Sent with a shot of DROID go fast

MACHbeliever · 10-13-2013, 04:41 PM

Be sure your pumps are set at the right height you may be close to bottoming them out in the tank which collapses the sock and starves pumps.....

na svt · 10-15-2013, 09:04 AM

Quote:

Originally Posted by 626socalstang

Division Xrails, Dual DivisionX 340 pumps, KB BAP with the wire upgrade.

dual 340s and a BAP?

hecdel40 · 10-17-2013, 11:20 PM

I had the same problem with my car and I'm running return system with two walbro 255 and the car was doing the same thing running out of fuel around 5600 and all it was the MAF setting need to be adjust don't ask me what setting because i don't know but if you pm 1badautogt he can point you on the right direction.

SVT_snake · 10-25-2013, 09:03 PM

Did you ever fix your problem?
I had something very similar on my car about 3 weeks ago. I had a stock cobra hat and pumps tho what fixed it for me was my ccrm went bad switched it out and problem fixed basically ccrm has two voltage settings one for low rpm and one for high. At high rpm it sends more power to the pumps. I saw you have power wire upgrade so i dont know if that bypasses the ccrm or not but just thought I would throw it out there.

10-09-2013, 01:52 AM	#1
626socalstang Registered User Join Date: Nov 2011 Location: Arcadia, California Posts: 452	Upgraded pumps and rails, still running out of fuel at 5500rpms I took the Mach to get a tune today and come to find out I having the same problem I did with the stock cobra pumps and rails...The tuner is thinking either one of t!he pumps is bad, fuel filter needs to be replaced, or I have a pinch in the fuel line.. I don't know when the last time I replaced the filter so I'll be doing that first thing, and was wondering if anyone has come across an issue like this and had some advice? __________________ -You just can't weld all your problems-

10-09-2013, 01:00 PM	#2
TKat13 Mach-T Join Date: Jun 2004 Location: DFW Posts: 2,865	Re: Upgraded pumps and rails, still running out of fuel at 5500rpms Had a friend with a similar issue, the hose inside the tank that connected to his pump was loose. Clamp was not tight. __________________ Darrell Black '04 Mach 1 Track Times (bone-stock w/drs):60 ft - 1.90 \| 1/8 - 8.67 (100 shot,E85,4:10s,Street tire):60 ft - 1.67 \| 1/8 - 7.88 New build - 750rwhp; not track tested (yet) Mods: Build Log Paint&Body Tuned by Manny @ HPP

10-09-2013, 11:29 PM	#3
medrick im slow Join Date: May 2011 Location: Tulsa, OK Posts: 324	Re: Upgraded pumps and rails, still running out of fuel at 5500rpms whats your setup?

10-11-2013, 02:17 AM	#5
626socalstang Registered User Join Date: Nov 2011 Location: Arcadia, California Posts: 452	Re: Upgraded pumps and rails, still running out of fuel at 5500rpms Division Xrails, Dual DivisionX 340 pumps, KB BAP with the wire upgrade. __________________ -You just can't weld all your problems-

10-12-2013, 05:53 PM	#7
626socalstang Registered User Join Date: Nov 2011 Location: Arcadia, California Posts: 452	Re: Upgraded pumps and rails, still running out of fuel at 5500rpms ooooh, stock block bored to 302, stroker kit, D1 with 8rib pushing 16lbs, 98 cobra cams __________________ -You just can't weld all your problems-

10-12-2013, 09:58 PM	#8
Mach828 Dark Knight Join Date: Nov 2009 Location: Albuquerque, NM Posts: 5,759	What injectors do you have? Are you running dual 340s? Do you have dual fpdms? Sent with a shot of DROID go fast __________________ Vortech V2 S-trim, E85, A2A Treadstone, Comp cams, built engine, full exhaust, built rear, built 4r70, more mods. Tuned by me with SCT Advantage

10-13-2013, 04:41 PM	#9
MACHbeliever Member Join Date: Jul 2003 Location: Southern NH Posts: 203	Re: Upgraded pumps and rails, still running out of fuel at 5500rpms Be sure your pumps are set at the right height you may be close to bottoming them out in the tank which collapses the sock and starves pumps..... __________________ 03 Azure.. Born 04/23/03 FRPP A46X 5.0 Forged Stroker SB & Rev "C" Heads. Homemade Big-Air Intake! Fore Hat, Rails & Pump Controller w/twin AEM 320's Return Setup. Procharger D1 11psi, w/4"pulley & 3core Intercooler. 505/440 Lots of MM Suspension Goodies. Truetrac w/4:30's & Moser 31's.

10-17-2013, 11:20 PM	#11
hecdel40 Registered User Join Date: May 2008 Location: Waveland MS Posts: 326	Re: Upgraded pumps and rails, still running out of fuel at 5500rpms I had the same problem with my car and I'm running return system with two walbro 255 and the car was doing the same thing running out of fuel around 5600 and all it was the MAF setting need to be adjust don't ask me what setting because i don't know but if you pm 1badautogt he can point you on the right direction.

10-25-2013, 09:03 PM	#12
SVT_snake Registered User Join Date: May 2012 Location: Lytle,texas Posts: 14	Re: Upgraded pumps and rails, still running out of fuel at 5500rpms Did you ever fix your problem? I had something very similar on my car about 3 weeks ago. I had a stock cobra hat and pumps tho what fixed it for me was my ccrm went bad switched it out and problem fixed basically ccrm has two voltage settings one for low rpm and one for high. At high rpm it sends more power to the pumps. I saw you have power wire upgrade so i dont know if that bypasses the ccrm or not but just thought I would throw it out there.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)