anoder sr swap fuel pump not working - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*wangan_cruiser* · 07-10-2009, 01:59 PM

i finished my swap and ready to fire her up.

but i cranked it didnt start.

then i checked the fuel lines first if im getting fuel. no pressure. no fuel when i pulled the hoses.

so i went back to the inside and turn the ign key on to listen if the fuel pump is priming. no response

double checked the harness i cut and splice located from the side of the battery.

i spliced them one by one carefully so i wont mixed things up.

then double checked the clip from the back where the fuel pump is connect for voltage and it has one.

now im stumped and dont know where to look.

anyone can help me?

johngriff · 07-10-2009, 02:01 PM

ECCS relay circuit, or ecu.

*wangan_cruiser* · 07-10-2009, 02:07 PM

i just checked the relay for voltage and pull ing 12 v

then i double checked the relay if its till good and it works.

then when i turn the ign key i double checked the ecu to see if it flashes.

no flash at all. it should flash the light right?

johngriff · 07-10-2009, 02:10 PM

S13? Yes. Manually force the relay over by grounding the eccs pin, should force the fuel pump on.

*wangan_cruiser* · 07-10-2009, 02:11 PM

cant tell which is the eccs pin.

ive doing my research since yesterday to figure out which lines and pin out.

*wangan_cruiser* · 07-10-2009, 02:50 PM

bump anyone?

KiLLeR2001 · 07-10-2009, 11:51 PM

On the S13 fuse box the EGI label is the relay for the ECU, and the EGI Pump is the relay for the fuel pump. If you're sure your relays are fine then it more than likely could be your ECU or an error in the harness job.

Just last month my ECU completely died on me. Initially I thought my fuel pump was toasted so I immediately bought another and installed it to no avail. I decided to pop in my friend's known working ECU and sure enough all my problems were solved. If you have a friend who will lend you a working ECU you can go from there.

*wangan_cruiser* · 07-11-2009, 02:13 AM

i just fixed the issue just now.

thanks for johngriff and russ.

StevenMFQiu · 07-11-2009, 10:43 PM

what was the problem and what did u do to fix it? i have a similiar problem right now

07-10-2009, 01:59 PM	#1
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 36 Posts: 3,535 Trader Rating: (36) Feedback Score: 36 reviews	anoder sr swap fuel pump not working i finished my swap and ready to fire her up. but i cranked it didnt start. then i checked the fuel lines first if im getting fuel. no pressure. no fuel when i pulled the hoses. so i went back to the inside and turn the ign key on to listen if the fuel pump is priming. no response double checked the harness i cut and splice located from the side of the battery. i spliced them one by one carefully so i wont mixed things up. then double checked the clip from the back where the fuel pump is connect for voltage and it has one. now im stumped and dont know where to look. anyone can help me?

07-10-2009, 02:01 PM	#2
johngriff Post Whore! Join Date: Jun 2004 Location: Long Beach, CA Posts: 4,103 Trader Rating: (4) Rides Gallery: johngriff Feedback Score: 4 reviews	ECCS relay circuit, or ecu. __________________ [email protected]

07-10-2009, 02:10 PM	#4
johngriff Post Whore! Join Date: Jun 2004 Location: Long Beach, CA Posts: 4,103 Trader Rating: (4) Rides Gallery: johngriff Feedback Score: 4 reviews	S13? Yes. Manually force the relay over by grounding the eccs pin, should force the fuel pump on. __________________ [email protected]

07-10-2009, 11:51 PM	#7
KiLLeR2001 Post Whore! Join Date: Jun 2007 Location: オーランドフロリダ Posts: 7,955 Trader Rating: (46) Feedback Score: 46 reviews	On the S13 fuse box the EGI label is the relay for the ECU, and the EGI Pump is the relay for the fuel pump. If you're sure your relays are fine then it more than likely could be your ECU or an error in the harness job. Just last month my ECU completely died on me. Initially I thought my fuel pump was toasted so I immediately bought another and installed it to no avail. I decided to pop in my friend's known working ECU and sure enough all my problems were solved. If you have a friend who will lend you a working ECU you can go from there. __________________

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07-10-2009, 02:07 PM	#3
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 36 Posts: 3,535 Trader Rating: (36) Feedback Score: 36 reviews	i just checked the relay for voltage and pull ing 12 v then i double checked the relay if its till good and it works. then when i turn the ign key i double checked the ecu to see if it flashes. no flash at all. it should flash the light right?

07-10-2009, 02:11 PM	#5
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 36 Posts: 3,535 Trader Rating: (36) Feedback Score: 36 reviews	cant tell which is the eccs pin. ive doing my research since yesterday to figure out which lines and pin out.

07-10-2009, 02:50 PM	#6
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 36 Posts: 3,535 Trader Rating: (36) Feedback Score: 36 reviews	bump anyone?

07-11-2009, 02:13 AM	#8
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 36 Posts: 3,535 Trader Rating: (36) Feedback Score: 36 reviews	i just fixed the issue just now. thanks for johngriff and russ.

07-11-2009, 10:43 PM	#9
StevenMFQiu Join Date: Apr 2009 Location: sacramento Age: 31 Posts: 36 Trader Rating: (0) Feedback Score: 0 reviews	what was the problem and what did u do to fix it? i have a similiar problem right now