palmer765s Posted February 22, 2013 Share Posted February 22, 2013 Hello all, my names Shane i just joined this forum but was on zcar.com by the same name, and i couldent exactly get the awnsers i needed and everyone advised to come here so i did! My car is a S30 76 datsun 280z with 74k orignal miles all stock L28E Now the reason im here, when i bought the car the guy had it from 82 (im the third owner) but it had been sitting 4 years. So the day i went to buy it he told that he had it running to warm it up (the clutch was frozen so i couldent test drive it) but when i got there he explained to me that he had it running for a few mins while he was in the house and when he came back out it was shut off, he tried to start it agin but it would only idle for 2-5 seconds then die, When i got the car home i did a coupple thing to it to freshen it up and fix the clutch, changed the oil, filter, spark plugs, drained the tank and added 10 gallon of 93 + fuel injector cleaner, changed the fuel pump (he had a new one to go along with it) and changed the clutch,pressure plate, thowout bearing, slave cilinder, and master cilinder. So the problem its still doing the same thing from when i bought it (starts up and idles for 2-5 seconds then dies), i figured if it was like any other nissan (had a 89 nissan 240sx coupe with a ka24e) that if you MAF was bad you could unplug it and the car would still start and eather run like shit (rich as hell) or just idle for a few seconds and die, so i tried that and figured that the AFM was bad and ordered a remanufactured one. Well it came in the mail today and tried that but yet its still doing the same thing. Also i changed the boot from the throttle body to the AFM because there was a dry rot crack in it, and i check the intake mani and all hoses for any ail leaks thinking it might be sucking air and leaning it out causing it to die, but still found nothing.... So i plan on changing the fuel pressure regulator tomrow (the one on the fuel rail) had ordered one but never put it on. Also i have a new PCV valve for it never put it on yet eather, was wondering if that would have any thing to do with it ? (i wouldent imagine it would cause its for emissions) Does any one have any experince with these setups or has this happened to any one else ? i checked the voltage going to it and it all checks out ( dont know exactly what it should be getting but it seems about what it should be) Thank you all for looking just hoping to get it running right cause if i cant soon im just going to do a SR20DET swap into it with every thing from mckenny motorsports, As much as i would love to keep the origonal L28E if i cant get this thing figured out ill end up swaping it Oh and sorry if my spelling sucks i know it does just always has (got bashed on ZCAR.com for my spelling) Quote Link to comment Share on other sites More sharing options...
palmer765s Posted February 22, 2013 Author Share Posted February 22, 2013 Sorry guys forgot to ask one thing, i was wondering is there any way to bench test the injectors? im thinking there might be one stuck open/wont fire, can i just pop them off still attached to the fuel rail and try and trick the fuel pump on from the AFM flap ? or do i have to take them some where and have them tested that way ? Quote Link to comment Share on other sites More sharing options...
Pac_Man Posted February 22, 2013 Share Posted February 22, 2013 There are small computer units that detect when an injector is firing. They're fairly inexpensive but I think that would be a good place to start if you think they might be bad. You could also check the fuel injector connectors. They're known for breaking easily. Quote Link to comment Share on other sites More sharing options...
palmer765s Posted February 22, 2013 Author Share Posted February 22, 2013 for the tester you mean like basicaly a little light bulb that plugs into the injector wiring and flashes when it should fire ? cause iv seen people use them just never bought one Quote Link to comment Share on other sites More sharing options...
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