300ZX (Z32) Forums Dedicated to 90-96 ZCars otherwize known as the Z32's

1994 300zx na wont start

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Old 01-01-2014 | 10:49 PM
  #1  
Zrider's Avatar
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Joined: Jan 2014
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1994 300zx na wont start

Help me diagonse my car, so last week i was driving around and i came to a stop a red light and my car just shut off. Then rpms just dropped all the way down so i was like okay and cracked it back up and started driving then i got a little down the rode and in the middle of turning the corner it shut off again and i tried starting.it again but it wouldnt hold a idle so it would just keep dying. So i thought fuel pump or fuel pump control unit. So i did a fuel pump control unit bypass ant it still want atart. And i can hear my fuel pump if i turn the key to the on postion. So im just lost.. any help please
Old 01-02-2014 | 07:12 AM
  #2  
KSpakes87's Avatar
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Joined: Nov 2011
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From: Kingston, TN
Mine is currently doing this also. I'm waiting for a fuel pressure regulator. If you can get it to idle again try pressing the throttle. If it immediately starts trying to die its a good possibility this is your problem.

My symptoms started as the cutting out while making a turn. Then increased to cutting out while I was driving straight. Then died and can't get it to do more than idle when it will start.

I replaced the PTU suspecting it, but I was wrong. The only thing I can think of on mine with it starting and idling, but dying when I give it gas is it's losing fuel pressure. As my fuel pump, filter and injectors are all new this is what I'm going to replace.
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