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rollagtsracer · 01-24-2007, 11:21 PM

so i have a 89 ef hatch with the d15b2 and i went from dual point injection to multi point injection and it runs funny and sounds like a lawnmower i was wondering i swapped ecu's and did the right wiring the only thing i didnt do was swap the fuel pump could that have anything to do with it?

801CRX · 01-24-2007, 11:26 PM

Deffinatly!

Get the crx hf or si fuel pump

rollagtsracer · 01-24-2007, 11:28 PM

Quote:

Originally Posted by 801CRX

Deffinatly!

Get the crx hf or si fuel pump

thanks this dumbass told me it would be fine with the original cause the ecu would tell the fuel pump to supply more fuel but obviously he was wrong

801CRX · 01-24-2007, 11:31 PM

The fuel pump only supplies as much as its supposed to. Once you reach the fuel pumps max velocity it wont provide anymore fuel. No matter what the ECU is telling it to do.

rollagtsracer · 01-24-2007, 11:33 PM

i wish i would have found this forum before i did i got the multi point off of a d16 crx i have so im gonna go take the fuel pump off any idea on how long that will take to swap out?

rollagtsracer · 01-24-2007, 11:39 PM

another question... how do you think the d15b2 would handle boost?

rollagtsracer · 01-25-2007, 12:31 AM

does any body know if the crx fuel pump will plug right into the ef hatch it a zc fuel pump

rexaddict · 01-26-2007, 04:24 PM

it sould take about an hour to take the pump out of the tank
and an hout to put it in
just be carfull.patient and do it rite

Reckone · 01-27-2007, 12:37 PM

The fuel pump wouldn't make a difference, there the same. I have done many mpfi swaps and never had a fuel pump be a problem.

97hatch · 01-27-2007, 04:49 PM

check your injector and dizzy wiring its not the fuel pump

jeez i hate stupid people

hfrida · 01-27-2007, 05:21 PM

did you kept ur dual port dizzy

Reckone · 01-27-2007, 06:17 PM

Just a thought, but did you happen to replace the intake gasket for a new one? If you leak coolant into the cylinder it will make it run like a bag of ass.

97hatch · 01-28-2007, 01:32 PM

no you cant keep the dualpoint dizzy why are people so stupid and give out false info a dpfi to mpfi swap should only take a brother about 2 hr max and that is doing it right do your research and if you dont know what you are talking about from first hand experience SHUTUP

01-24-2007, 11:21 PM	#1
rollagtsracer Junior Member Join Date: Jan 2007 Location: murfreesboro, tennessee Posts: 18 iTrader: 0 / 0% Ride: 1988 Toyota Corolla FX16 GT-S Rep Power: 6	Dual point to multi point question so i have a 89 ef hatch with the d15b2 and i went from dual point injection to multi point injection and it runs funny and sounds like a lawnmower i was wondering i swapped ecu's and did the right wiring the only thing i didnt do was swap the fuel pump could that have anything to do with it?

01-24-2007, 11:26 PM	#2
801CRX Got Rice? Join Date: Dec 2006 Location: UTAH Age: 21 Posts: 1,339 iTrader: 0 / 0% Ride: 89' CRX HF and 90' Civic Si Rep Power: 27	Deffinatly! Get the crx hf or si fuel pump __________________ www.supremacyracing.com

01-24-2007, 11:31 PM	#4
801CRX Got Rice? Join Date: Dec 2006 Location: UTAH Age: 21 Posts: 1,339 iTrader: 0 / 0% Ride: 89' CRX HF and 90' Civic Si Rep Power: 27	The fuel pump only supplies as much as its supposed to. Once you reach the fuel pumps max velocity it wont provide anymore fuel. No matter what the ECU is telling it to do. __________________ www.supremacyracing.com

01-24-2007, 11:39 PM	#6
rollagtsracer Junior Member Join Date: Jan 2007 Location: murfreesboro, tennessee Posts: 18 iTrader: 0 / 0% Ride: 1988 Toyota Corolla FX16 GT-S Rep Power: 6	another question... how do you think the d15b2 would handle boost? __________________ i-vvti do u?

01-25-2007, 12:31 AM	#7
rollagtsracer Junior Member Join Date: Jan 2007 Location: murfreesboro, tennessee Posts: 18 iTrader: 0 / 0% Ride: 1988 Toyota Corolla FX16 GT-S Rep Power: 6	does any body know if the crx fuel pump will plug right into the ef hatch it a zc fuel pump __________________ i-vvti do u?


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01-24-2007, 11:33 PM	#5
rollagtsracer Junior Member Join Date: Jan 2007 Location: murfreesboro, tennessee Posts: 18 iTrader: 0 / 0% Ride: 1988 Toyota Corolla FX16 GT-S Rep Power: 6	i wish i would have found this forum before i did i got the multi point off of a d16 crx i have so im gonna go take the fuel pump off any idea on how long that will take to swap out?

01-26-2007, 04:24 PM	#8
rexaddict turbo ex Join Date: Dec 2006 Location: olympia wa Age: 27 Posts: 42 iTrader: 0 / 0% Ride: turbo EK & a 38k mile 2000 civic si Rep Power: 6	it sould take about an hour to take the pump out of the tank and an hout to put it in just be carfull.patient and do it rite

01-27-2007, 12:37 PM	#9
Reckone EF aholic Join Date: Jan 2007 Location: Albany, NY Posts: 186 iTrader: 1 / 100% Rep Power: 7	The fuel pump wouldn't make a difference, there the same. I have done many mpfi swaps and never had a fuel pump be a problem. __________________ 91' CRX SiR EF8 RHD

01-27-2007, 04:49 PM	#10
97hatch ? Join Date: Feb 2003 Location: Anderson IN Age: 26 Posts: 1,589 iTrader: 0 / 0% Ride: i have 14 cars i drive my sohc turbo ef Rep Power: 34	check your injector and dizzy wiring its not the fuel pump jeez i hate stupid people __________________ SOME PEOPLE ARE LIKE SLINKIES. NOT REALLY GOOD FOR ANYTHING BUT THEY BRING A SMILE TO YOUR FACE WHEN PUSHED DOWN THE STAIRS.

01-27-2007, 05:21 PM	#11
hfrida Member Join Date: Jan 2007 Posts: 33 iTrader: 0 / 0% Rep Power: 6	did you kept ur dual port dizzy __________________

01-27-2007, 06:17 PM	#12
Reckone EF aholic Join Date: Jan 2007 Location: Albany, NY Posts: 186 iTrader: 1 / 100% Rep Power: 7	Just a thought, but did you happen to replace the intake gasket for a new one? If you leak coolant into the cylinder it will make it run like a bag of ass. __________________ 91' CRX SiR EF8 RHD

01-28-2007, 01:32 PM	#13
97hatch ? Join Date: Feb 2003 Location: Anderson IN Age: 26 Posts: 1,589 iTrader: 0 / 0% Ride: i have 14 cars i drive my sohc turbo ef Rep Power: 34	no you cant keep the dualpoint dizzy why are people so stupid and give out false info a dpfi to mpfi swap should only take a brother about 2 hr max and that is doing it right do your research and if you dont know what you are talking about from first hand experience SHUTUP __________________ SOME PEOPLE ARE LIKE SLINKIES. NOT REALLY GOOD FOR ANYTHING BUT THEY BRING A SMILE TO YOUR FACE WHEN PUSHED DOWN THE STAIRS. Last edited by 97hatch; 01-28-2007 at 01:54 PM.

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Dual point to multi point question