seriously...the S13 gods are not looking lightly upon me

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
burntricer
Posts: 1126
Joined: Tue Jan 02, 2007 6:51 am
Car: 90 S13 SR20DET Redtop

Post

so fuel pump problems.

it comes on just a little bit, like its kicking over but then stops

pressure to the filter but nothing after.

poured gas line a/f into it, no change.

pulled fuel pump let it sit in heated garage over night, aswell as filter....

no change. check the wiring, its fine,

when the fuel pump was out i powered it and grounded it, and it pumped fine.

i thought relay, but i swapped them with my other 240...and they worked fine

i put my test light to the fuel pump relay wire and the pump kicked on and pressurised the system....

following the FSM... i did the following...

Checked the power supply to the fuel pump relay...it was fine

checked the ground circut (checked continuity between ground and fuel pump/ground and fuel pump relay) read fine.

checked the output circut...seemed fine again.

im getting really fed up

the filter is a brand new 300zx filter

you may remember, ive had nothing but problems with this whole setup, i bought a new s13 just for the winter, and just started tearing into the sr. well before i parked it the starter worked and so did the fuel pump, i went to change the injector o-rings and put an adjustable fpr onto it...and low and behold my starter and fuel pump arent working :D

and as for the starter, ive jumped it across the power post and grounded it and the thing didnt kick on, it just clicked...i read somewhere you can rebuild a SR starter with KA parts?


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fast_s13
Posts: 737
Joined: Sun Feb 23, 2003 2:28 pm

Post

try a differnt ecu

Morgs
Posts: 52
Joined: Thu Jun 07, 2007 11:50 am
Car: 1991 nissan 240sx
Contact:

Post

you say it builds pressure to the fuel filter, but not after it right? this might sound stupid but did you put the filter in right? it could be a prob if its upside down.

burntricer
Posts: 1126
Joined: Tue Jan 02, 2007 6:51 am
Car: 90 S13 SR20DET Redtop

Post

its in the right way...cuz when i get the pump to come on by grounding the ECU signal wire, it fires right through the filter

Emperor_Tha
Posts: 834
Joined: Wed Nov 22, 2006 12:56 pm

Post

so u are saying that if u jump the ground on the fuel pump it will work? Jump the fuel ground constanly

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240life
Posts: 1313
Joined: Mon Sep 24, 2007 6:02 am
Car: 1993 Nissan 240SX S13 Coupe SR20DET blacktop
Location: ME
Contact:

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fast_s13 wrote:try a differnt ecu
YUP i would definetally check into a new ECU my 240 did the same thing and after banging my head on a wall that turned up to be the issue.


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