Schoenmann12 Posted July 5, 2010 Share Posted July 5, 2010 My 1978 280z will not start and I've narrowed it down to a fuel issue. I replaced the pump, cleaned the tank, and pretty much everything else. I have 36 psi of fuel pressure. So I'm pretty sure it's the injectos. Should i take them out and look at them? How do I know if there bad? Quote Link to comment Share on other sites More sharing options...
sweetleaf Posted July 7, 2010 Share Posted July 7, 2010 Have you checked to see if the injectors are getting a pulse? Quote Link to comment Share on other sites More sharing options...
Schoenmann12 Posted July 7, 2010 Author Share Posted July 7, 2010 not yet. how would you do that? Quote Link to comment Share on other sites More sharing options...
Challenger Posted July 7, 2010 Share Posted July 7, 2010 Multimeter to each of the injector plugs? Other option is to pull the rail and see that they are visually spraying. Quote Link to comment Share on other sites More sharing options...
Schoenmann12 Posted July 7, 2010 Author Share Posted July 7, 2010 ok. I'm guessing the 2nd option (taking each of them out and see if they spray) is easier so i'll do that. So I don't have to take the whole fuel line off get off an injector? Quote Link to comment Share on other sites More sharing options...
Challenger Posted July 7, 2010 Share Posted July 7, 2010 (edited) Id think the first one is easier. You can just pull each plug off of the injector and then crank the car to see if its getting a signal. Pulling the whole fuel rail would be like two large bolts plus all the bolts holding on the individual injectors. 2nd option could also result in you possibly finding broken pintle (I think thats what theyre called) caps or cracked injector spacer/isolators. Edited July 7, 2010 by Challenger Quote Link to comment Share on other sites More sharing options...
Schoenmann12 Posted July 7, 2010 Author Share Posted July 7, 2010 but i'd have to buy a multimeter? What if it's not getting a signal? is it the injector that's bad or something electrical Quote Link to comment Share on other sites More sharing options...
sweetleaf Posted July 7, 2010 Share Posted July 7, 2010 Use a noid light, it's simple and pretty much idiot proof Quote Link to comment Share on other sites More sharing options...
roger.svoboda Posted July 7, 2010 Share Posted July 7, 2010 most vom won't react fast enough to detect the pulse a noid light is the best way. do a google amazon had some for cheap. Quote Link to comment Share on other sites More sharing options...
Schoenmann12 Posted July 7, 2010 Author Share Posted July 7, 2010 ok thanks. wait if a noid light is "idiot proof", then what are you saying. lol jk. Thanks Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.