Question about 1996 Nissan 300ZX

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I start my 300zx it runs for about 1 min and then it dies i replaced the fuel pump and relays

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If the pressure at the fuel rail is within specs, I believe your injectors may be clogging. This is all I can offer with the information you have given... reply and elaborate if this doesn't help you...MK

Posted on Oct 02, 2010


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1 Answer

2009 387 isx pete start might run 1 min might run 25 min ck eng light stop eng light comes on dies cycle key it will start right back up same thing

could be a weak fuel pump or regulator fault (fuel) faulty relay pump/injection ether one. idle valve sticking. these will all need to be checked.

Oct 09, 2013 | Cars & Trucks

1 Answer

My 1984 300zx starts fine and runs for about two minutes the dies. I can then then restart it and it does the same thing. I replaced the fuel filter and it didn't solve the problem. The car has be

Check fuel pressure with a gauge or at least
listen for the pump to come on when key is turned on

Cut that fuel filter open, so you understand what it does

They used to get clogged when fuel tanks were metal,
but you never get a not start,only lack of power at around
25 mph

Are you sure you just don't have a no idle condition

It runs 2 mins so what are you loosing,battery voltage,
fuel,spark ?

Nov 15, 2012 | 1984 Nissan 300ZX

1 Answer

Replace fuel pump om 1990 nissa 300zx

Sort of.
There should be a relay that provides power to the pump when you first turn the key on.
Then once the engine starts power is provided by way of the oil pressure switch. That way the pump won't run in an accident.
The oil pressure switch grounds the fuel pump relay on some models.

Jul 21, 2012 | 1991 Nissan 300ZX

1 Answer

Fuel pressure intermittently drops causing sputter and die.

check for 12v constant at your fuel pump if you are not getting that replace your relay.
if you are getting 12 volts at your fuel pump the fuel pump is possible to run tuel it gets warm then shut down to a lower rpm I would then replace the fuel pump

Oct 10, 2009 | 1994 Dodge Ram

1 Answer

1986 Nissan 300ZX starting problem

Dear llama470: there is a fuel pump relay located in the worst possible place Nissan could possibly think of! In the right 1/4 panel just forward of the wheel house. You have your work cut out for you if you want to get to it.
1st remove the sill plate from the door opening.
2.nd remove the trim panel which goes across the roof behind the seat (most 300ZX's are "t" tops")
3rd carefully gain access to the interior 1/4 panel. I gave you these instructions because the plastic gets very brittle and cracks easily when stressed. Anyway, as you remove the panel, just about 1.2 up the 1/4 just behind the door striker is a GREEN relay. That is the starter relay. The relay is energized by the ECM. There is a black wire with a few traces or red dots along the way which will end up going to pin # 108 on the ECM connector. If you ground this wire, the relay should click and the pump should run. Most Japanese cars make and break the grounds, not the positives, so the positive will be hot as soon as you turn on the key. The reason it will start then die, is because the fuel pump has two circuits to run on. One relates to the cranking circuit which will energize the relay and the other will only energize it after the car has started. This was designed so that if the car were in an impact, the impact would kill the fuel pump. NOW, The ECM is what runs the relay after the car has started. you may need to try another ECM.
The fuel pumps are easy to get to on this car. Remove the foam insulating floor covering behind the seats and you will see a large round metal plate with a wire harness going through it. There are quite a few bolts going around the perimeter to retain the plate. NOTE! BEFORE YOU REMOVE THIS PLATE, BE ABSOLUTELY SURE THE PUMP DOES NOT RUN.
Here is another way you can check:disconnect the starter solenoid and with the help of a friend, have them hold the key in the start position. You should hear a kind of shishhhhing sound coming from around the fuel lines. Also, prior to turning the key, pinch the fuel hose where the fuel filter is and you will notice it is easy to pinch flat. If the pump is working, when you turn the key to the cranking position and hold it, try pinching it again. The hose will now fee; some what hard. This would indicate it has fuel pressure, thus indicating the pump is working. Which means is all likely hood the ECM is probably the culprit. Most other components wont keep it from running, it will just run badly. Let me know how you do. Good luck

Feb 10, 2009 | 1986 Nissan 300ZX

1 Answer

Nissan 300ZX Fuel problem

I had an 82 280zx and now a 90 300zx, in both cars the fuel pump relays were located in the engine compartment, in the fuse boxes, as long as you can read the covers over the fuses, they are clearly marked.
2nd no fuel at filter would either be faulty pump or relay. All that the regulator does is regulate the pressure to the injectors and keep them consistant.

Dec 31, 2008 | 1990 Nissan 300ZX

1 Answer

85 nissan 300zx turbo

alternator and mass air flow meter.
see my solution above.....

Jul 28, 2008 | 1985 Nissan 300ZX

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