Question about 1992 Nissan 300ZX
I was driving my 1992 non turbo 300zx in the rain and it started smoking and a really putrid smell started, then my car died out. I started it back up and drove it about 2 blocks and then it died so i popped the clutch and gained power for about 5 seconds and it died out again no headlights or gauges were working. Please HELP
Sounds to me like you had an electrical burn out or near fire condition. Water may have gotten into an open area like wiring harness or fuse block and caused a short and what you were smelling is the insulation or other plastics burning. I would take the car to a auto electric specialist for diagnostics.
Posted on Feb 13, 2014
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Posted on Jan 02, 2017
Old post but I would like to state that white smoke and white vapor are two different thing and blue smoke is sometimes so ligh it looks white but does act like heavy smoke. Evanescence of water vapor looks a lot like smoke but dissipates a lot quicker but in mass quantities can look like smoke (yes..I been dying to use that word ever since I heard of the band Evanescence lol). Transmission fluid can be sucked into the engine via a bad shift modulator both that has no bearing here (just FYI). In either case you would be fouling out spark plugs due to oil or water saturation and causing unburned fuel to be expelled.
Posted on Feb 17, 2009
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
Posted on Mar 28, 2009
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