fuel system upgrade?

Icepic · 12-19-2006, 09:24 PM

my check engine light has been coming on lately and i thought that the oxygen sensors were going bad because the code was 0174 and 0173 or "left and right bank too lean". However, i've come to notice that the check engine light only comes on when i drive at high rpm's when the temp is 15f or colder. I've modified the air intake quite extensively and i wonder if the fuel system is unable to meet the demand of so much freezing air coming in the engine.

How can i upgrade my fuel pump? it is inside the fuel tank. is there a way i can change the pump pressure on the stock fuel pump or do I need a new pump all together? I'm getting tired of using my code reader to shut the light off please help!

or is it something else?

slow2000z28 · 12-19-2006, 09:35 PM

you could try an adjustable pressure regulator. and to answer your ? bout the pump its gonna be in tank. check w/ walbro to see if they make an high psi pump 4 the car

Icepic · 12-19-2006, 10:10 PM

it would have to be a universal pump, aftermarket support for my car is virtualy non-exsistant.
and a pressure regulator, almost forgot about those. i don't know if my car has one or where its at if it does, i've looked for it before. thats why i think its the fuel pump itself that needs to be adjusted if possible.

also, doesn't changing the fuel pressure confuse the ECU? or does it "learn" the new fuel curve being factory an all?

slow2000z28 · 12-19-2006, 10:18 PM

your FPR should be on the fule rail if in not mistaken. stock it is non adjustable though. as far as tunning issues. as long as you dont go crazy w/ the pressure you should be alright. i ran an adjustble FRP one an Accord and on my car for a while too. the LTFT adjusted itself out for the new fuel mixture. but thats notta ford 3.0

12-19-2006, 09:24 PM	#1
Icepic lead, follow, or get the hell out of the way! 2003 Ford Taurus SEL My Page \| My Pics \| My Ads Join Date: Oct 2006 Location: Butte, MT Posts: 814	fuel system upgrade? my check engine light has been coming on lately and i thought that the oxygen sensors were going bad because the code was 0174 and 0173 or "left and right bank too lean". However, i've come to notice that the check engine light only comes on when i drive at high rpm's when the temp is 15f or colder. I've modified the air intake quite extensively and i wonder if the fuel system is unable to meet the demand of so much freezing air coming in the engine. How can i upgrade my fuel pump? it is inside the fuel tank. is there a way i can change the pump pressure on the stock fuel pump or do I need a new pump all together? I'm getting tired of using my code reader to shut the light off please help! or is it something else?

12-19-2006, 09:35 PM	#2
slow2000z28 Rated R Racing 2000 z28 My Page \| My Pics \| My Ads Join Date: Nov 2006 Location: Rocky mount VA AKA the ROC Posts: 752	you could try an adjustable pressure regulator. and to answer your ? bout the pump its gonna be in tank. check w/ walbro to see if they make an high psi pump 4 the car __________________ QTP LT's, QTP ORY w/ Cut outs, ported tb, ported Maf, msd wires, 4.10 gears, upgraded axles and drive shaft, built Rockland T-56 trans, t/a rear girdle, centerforce clutch, cold air intake, flowmaster, and standalone computer tunning from HPTuners weiand intake on the way and sts turbo kit hopefully by this spring.

12-19-2006, 10:18 PM	#4
slow2000z28 Rated R Racing 2000 z28 My Page \| My Pics \| My Ads Join Date: Nov 2006 Location: Rocky mount VA AKA the ROC Posts: 752	your FPR should be on the fule rail if in not mistaken. stock it is non adjustable though. as far as tunning issues. as long as you dont go crazy w/ the pressure you should be alright. i ran an adjustble FRP one an Accord and on my car for a while too. the LTFT adjusted itself out for the new fuel mixture. but thats notta ford 3.0 __________________ QTP LT's, QTP ORY w/ Cut outs, ported tb, ported Maf, msd wires, 4.10 gears, upgraded axles and drive shaft, built Rockland T-56 trans, t/a rear girdle, centerforce clutch, cold air intake, flowmaster, and standalone computer tunning from HPTuners weiand intake on the way and sts turbo kit hopefully by this spring.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Pro Street Motorsports	My Pro Street Community
Pro Street Online Store Pro Street Motorsports Shop OEM Replacement Parts Check your order status Contact us (Hayward, CA)	Register for our free community! Member Photo Gallery Do It Yourself & Tech Tips Product Reviews Newest Rides to Pro Street

12-19-2006, 10:10 PM	#3
Icepic lead, follow, or get the hell out of the way! 2003 Ford Taurus SEL My Page \| My Pics \| My Ads Join Date: Oct 2006 Location: Butte, MT Posts: 814	it would have to be a universal pump, aftermarket support for my car is virtualy non-exsistant. and a pressure regulator, almost forgot about those. i don't know if my car has one or where its at if it does, i've looked for it before. thats why i think its the fuel pump itself that needs to be adjusted if possible. also, doesn't changing the fuel pressure confuse the ECU? or does it "learn" the new fuel curve being factory an all?