Shehrmaan Posted January 17, 2014 Report Share Posted January 17, 2014 Hi I'm new to this its my 1st car,its a nissan skyline 2.8 gtx.bought it a coupla months ago an was told it needs a new fuel pump.got a 2nd hand fuel pump but car stil not starting,it started 3 or 4 times but then just cut out after about 5 seconds.can it be that the fuel pump is not strong enough coz I def have spark an fuel.but fuel pump is very weak.some have told me it cud be crank sensor or afm.car startd with quik start fluid a coupla times aswell but not always,sumtimez wen I use quik start it jst swings but doest start. Quote Link to comment
ggzilla Posted January 17, 2014 Report Share Posted January 17, 2014 Cranking = turning over So it is not starting? Instead of buying more parts, test what you have. A fuel pressure gauge is only $35 or borrow one from Autozone. Quote Link to comment
Shehrmaan Posted January 17, 2014 Author Report Share Posted January 17, 2014 Had fuel pressure tested,fuel pump is olny pushing 2bars Quote Link to comment
ggzilla Posted January 17, 2014 Report Share Posted January 17, 2014 If it is not up to spec, replace it. Quote Link to comment
Shehrmaan Posted January 17, 2014 Author Report Share Posted January 17, 2014 If the pressue is that low will the car do what its doin? Quote Link to comment
ggzilla Posted January 17, 2014 Report Share Posted January 17, 2014 If EFI fuel pressure is substantially low weird things happen. Quote Link to comment
Shehrmaan Posted January 17, 2014 Author Report Share Posted January 17, 2014 Ok thnx 4 the advice,I 4got 2 mention wen I try startin it I cn the car wants to start but it jst doesn't catch.I dnt no if ther is a problem with ignition as well coz wen I hotwire it sounds more like it cud start Quote Link to comment
ggzilla Posted January 17, 2014 Report Share Posted January 17, 2014 I would work on the problems one at a time. What is the fuel pressure supposed to be? Quote Link to comment
Shehrmaan Posted January 17, 2014 Author Report Share Posted January 17, 2014 According 2 most guys I asked,guys who know these motors quite well,they sed I should get a pump that pumps 6bars Quote Link to comment
ggzilla Posted January 17, 2014 Report Share Posted January 17, 2014 S130 2.8 fuel pump pressure is only 30 psi at idle. And 43-64 psi Cut-off discharge pressure. So 3 bar is within spec. 2 bar at idle. Specs for the R30 may be different Quote Link to comment
Shehrmaan Posted January 17, 2014 Author Report Share Posted January 17, 2014 Well its the xact same engine so I'm probly guessin it should be the same. Quote Link to comment
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