no fuel, good pump/relay/fuse.. ????? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

oscarsx · 05-08-2012, 10:37 PM

what's up fellas. I have a 1989 240sx ka-t. a few days ago my car decided to act up. I was letting it idle for 10 mins when all of a sudden it died. checked my fuel gauge and it was on Empty..

so I go to the gas station and bring home a 2 gallon tank. pour it in, tried starting with no luck. first instinct I check for spark, all good.. then I decide to take out the fuel filter from the "OUT" side. I tell my brother to crank and as I suspected no fuel was shooting out, put my ear into the hose, not even a hiss.

checked my relay, all good. took out my walbro 255 plugged positive/negative to a spare battery for a quick second and it did sound like it was working.

what other things should I check for and what advice do you guys give to do?

TL;DR: fuel pump moves when connected straight positive/neg. relay is good, fuse is good, no fuel coming out from fuel filter.. any ideas?

Sent from my DROID X2

*wangan_cruiser* · 05-08-2012, 10:42 PM

possibly burnt ecu?

godrifttoday · 05-08-2012, 10:47 PM

check if you are getting 12 volts at the pump then go from there so you need a voltmeter

oscarsx · 05-09-2012, 11:26 AM

Quote:

Originally Posted by wangan_cruiser

possibly burnt ecu?

if the ecu was burnt would everything else work? all electronics work, cranks over fine etc.. just no fuel.

ill check the voltage tonight when I get home thanks.

Sent from my DROID X2

KiLLeR2001 · 05-09-2012, 01:07 PM

Check to see if there is a ground signal being sent from the ECU to the EGI Pump relay (black w/pink stripe wire). If no ground being sent, ECU is bad. Happened to me. Everything else worked but wouldn't prime my fuel pump anymore.

oscarsx · 05-09-2012, 02:16 PM

ill make sure to check that.. also I pulled my pump out and there's a small opening, looks broken.. here's a pic ... I'm a noob and have no clue if something went there or not

Sent from my DROID X2

godrifttoday · 05-09-2012, 02:42 PM

check for volatage! ground!!! when the pump is installed.

jvega · 05-11-2012, 12:52 AM

Pretty much what they are saying..
I had the same problem

I stabbed the Black/Pink wire with a test light and grounded it off too the battery and the fuel pump would prime all day long..

Podladog · 05-12-2012, 08:35 AM

I had this exact same problem man. Check your ground in the harness. If youve got ground then your ecu is for sure burnt.

ze12o · 05-12-2012, 09:25 AM

Do you hear the pump prime when you put it on the on position?

Frank_Jaeger · 05-12-2012, 06:07 PM

I've read about the 255s burning up when you run them below a quarter of a tank.

Try testing it while submerged in gas, instead of just listening.

05-08-2012, 10:37 PM	#1
oscarsx Zilvia Addict Join Date: Apr 2006 Location: SoCal Posts: 697 Trader Rating: (6) Feedback Score: 6 reviews	no fuel, good pump/relay/fuse.. ????? what's up fellas. I have a 1989 240sx ka-t. a few days ago my car decided to act up. I was letting it idle for 10 mins when all of a sudden it died. checked my fuel gauge and it was on Empty.. so I go to the gas station and bring home a 2 gallon tank. pour it in, tried starting with no luck. first instinct I check for spark, all good.. then I decide to take out the fuel filter from the "OUT" side. I tell my brother to crank and as I suspected no fuel was shooting out, put my ear into the hose, not even a hiss. checked my relay, all good. took out my walbro 255 plugged positive/negative to a spare battery for a quick second and it did sound like it was working. what other things should I check for and what advice do you guys give to do? TL;DR: fuel pump moves when connected straight positive/neg. relay is good, fuse is good, no fuel coming out from fuel filter.. any ideas? Sent from my DROID X2 __________________ IG: @ozc2jz

05-08-2012, 10:47 PM	#3
godrifttoday Post Whore! Join Date: Jan 2004 Location: los angeles Age: 41 Posts: 3,120 Trader Rating: (82) Feedback Score: 82 reviews	check if you are getting 12 volts at the pump then go from there so you need a voltmeter __________________ NEED Bolt kits for your car?

05-09-2012, 01:07 PM	#5
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	Check to see if there is a ground signal being sent from the ECU to the EGI Pump relay (black w/pink stripe wire). If no ground being sent, ECU is bad. Happened to me. Everything else worked but wouldn't prime my fuel pump anymore. __________________

05-09-2012, 02:16 PM	#6
oscarsx Zilvia Addict Join Date: Apr 2006 Location: SoCal Posts: 697 Trader Rating: (6) Feedback Score: 6 reviews	ill make sure to check that.. also I pulled my pump out and there's a small opening, looks broken.. here's a pic ... I'm a noob and have no clue if something went there or not Sent from my DROID X2 __________________ IG: @ozc2jz Last edited by oscarsx; 05-11-2017 at 08:34 AM..

05-09-2012, 02:42 PM	#7
godrifttoday Post Whore! Join Date: Jan 2004 Location: los angeles Age: 41 Posts: 3,120 Trader Rating: (82) Feedback Score: 82 reviews	check for volatage! ground!!! when the pump is installed. __________________ NEED Bolt kits for your car?

05-08-2012, 10:42 PM	#2
wangan_cruiser kouki man Join Date: Apr 2006 Location: downtown oakland,ca Age: 40 Posts: 3,539 Trader Rating: (36) Feedback Score: 36 reviews	possibly burnt ecu?

05-11-2012, 12:52 AM	#8
jvega Leaky Injector Join Date: Nov 2010 Location: arizona Age: 36 Posts: 133 Trader Rating: (1) Feedback Score: 1 reviews	Pretty much what they are saying.. I had the same problem I stabbed the Black/Pink wire with a test light and grounded it off too the battery and the fuel pump would prime all day long..

05-12-2012, 08:35 AM	#9
Podladog Join Date: Nov 2011 Location: KS Age: 33 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	I had this exact same problem man. Check your ground in the harness. If youve got ground then your ecu is for sure burnt.

05-12-2012, 09:25 AM	#10
ze12o Zilvia FREAK! Join Date: Jan 2008 Location: NY Age: 34 Posts: 1,005 Trader Rating: (26) Feedback Score: 26 reviews	Do you hear the pump prime when you put it on the on position? __________________ ಠ_ಠ

05-12-2012, 06:07 PM	#11
Frank_Jaeger Zilvia FREAK! Join Date: Jan 2012 Location: Port Charlotte, Florida Age: 33 Posts: 1,352 Trader Rating: (1) Feedback Score: 1 reviews	I've read about the 255s burning up when you run them below a quarter of a tank. Try testing it while submerged in gas, instead of just listening.