SR Starting problem searched and been troubleshooting... still stumped... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

blitz180 · 05-14-2005, 08:32 PM

Anyone? I'd really like to get her running.

phase2 · 05-15-2005, 04:23 AM

Hook up a temporarily inline fuel pressure gauge and monitor what fuel pressure you should be at when you turn the key to ACC 'ON' position, if it reads anywhere between 37-42psi then you can say the fuel pump is okay, otherwise it's still hard to say if it's fuel related. Also possibily your crank angle sensor adjustment is still off, and you should test spark on all 4 plugs to make sure each one of the plugs fires up by grounding each coil/plug to the exhaust headshield.

Wayne
Phase 2 Motortrend Inc.
http://www.phase2motortrend.com
T: (626) 338-8314
F: (626) 338-8375

blitz180 · 05-15-2005, 08:42 PM

Ok i have tested the coilpacks by grounding them to the heatshield already, they all fired nicely. I will try hooking up the fuel pressure guage to the lines and reading the pressure.
The CAS has been set to many different places and it catches best where it's at now, and if you pour gas in the TB as mentioned above it runs... not well, but i assume that's becasue the cold pipe is off to pour in the gas and it's causing a major boost leak. Along with the fact that the gas is not being measured out properly into each cylinder.
But I am gonna try to read the pressure and I'll post it back on here.. also i bought some starter fluid and some good old fashioned carb and choke cleaner. I'll see what I can do in the limited amount of time i have to fiddle with her tomorrow.

The odd thing is, is that as many times as we've tried to turn her over with out running, there is no gas in the oil... i was thinking there should be quite a bit by now.

the head · 05-16-2005, 09:22 AM

do you have the fuel lines hooked up correctly?

blitz180 · 05-16-2005, 10:33 AM

Quote:

do you have the fuel lines hooked up correctly?

Yes. At first they were backwards, but now they are right. In hose to fuel rail, return to FPR.

I can't here any noise coming from the pump when they key is in the on posistion. I have no back seat and no trunk carpet so I should be able to easily hear it. I could hear the factory unit. Even with a mechanics stehtascope I couldn't hear it. I think I should be able to, right? It's a Walboro 255. We're pulling it now to look at it.

05-16-2005, 09:22 AM	#4
the head Nissanaholic! Join Date: Jul 2002 Location: in a dark room mastering the art of typing with one hand Posts: 2,164 Trader Rating: (3) Feedback Score: 3 reviews	do you have the fuel lines hooked up correctly? __________________ I never knew you could do that with an eggplant

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05-14-2005, 08:32 PM	#1
blitz180 Zilvia Member Join Date: Aug 2003 Location: Usa-shi, Oita-ken, Japan Age: 42 Posts: 169 Trader Rating: (0) Feedback Score: 0 reviews	Anyone? I'd really like to get her running.

05-15-2005, 04:23 AM	#2
phase2 Zilvia.net Advertiser Join Date: Jun 2002 Location: Walnut, CA 91789 Posts: 380 Trader Rating: (3) Feedback Score: 3 reviews	Hook up a temporarily inline fuel pressure gauge and monitor what fuel pressure you should be at when you turn the key to ACC 'ON' position, if it reads anywhere between 37-42psi then you can say the fuel pump is okay, otherwise it's still hard to say if it's fuel related. Also possibily your crank angle sensor adjustment is still off, and you should test spark on all 4 plugs to make sure each one of the plugs fires up by grounding each coil/plug to the exhaust headshield. Wayne Phase 2 Motortrend Inc. http://www.phase2motortrend.com T: (626) 338-8314 F: (626) 338-8375

05-15-2005, 08:42 PM	#3
blitz180 Zilvia Member Join Date: Aug 2003 Location: Usa-shi, Oita-ken, Japan Age: 42 Posts: 169 Trader Rating: (0) Feedback Score: 0 reviews	Ok i have tested the coilpacks by grounding them to the heatshield already, they all fired nicely. I will try hooking up the fuel pressure guage to the lines and reading the pressure. The CAS has been set to many different places and it catches best where it's at now, and if you pour gas in the TB as mentioned above it runs... not well, but i assume that's becasue the cold pipe is off to pour in the gas and it's causing a major boost leak. Along with the fact that the gas is not being measured out properly into each cylinder. But I am gonna try to read the pressure and I'll post it back on here.. also i bought some starter fluid and some good old fashioned carb and choke cleaner. I'll see what I can do in the limited amount of time i have to fiddle with her tomorrow. The odd thing is, is that as many times as we've tried to turn her over with out running, there is no gas in the oil... i was thinking there should be quite a bit by now.