Slow_Old_Car Posted April 12, 2008 Share Posted April 12, 2008 I'm trying to trouble shoot a stock 280z that has been off the road for years. I've already discovered a bad fuel pump and flushed the lines with air. I also replaced the injectors with some known good ones, then hooked up a closed loop fuel system running out of a 1 gallon gas jug at the moment with a walboro 255lph pump, adjustable regulator, and JSK rail, so i know everything related to "hard parts" is new or working. i probed the plugs for the injectors after cleaning out the usual oxidization but couldn't get a consitant reading. i'm not terribly familiar w/ the stock EFI, so can someone probe one of there plugs and tell me what voltage they are getting when the car is in the "on" position? if i can't match other peoples voltage i guess i'll have to move down the line of electrical crap. and for further clarification, i can start the car on starter fluid, i know i have good spark, it's purely a fuel related and looking to be electrically fuel related issue... stock 75' 280z Quote Link to comment Share on other sites More sharing options...
roger.svoboda Posted April 12, 2008 Share Posted April 12, 2008 the injectors only pulse so you need a noid light to see what is going on. also they make noise if you listen with a stethoscope. just cause they get voltage doesn't mean they are opening. I'd lay them on newspaper (out of the engine) and fire the starter see if they are all spraying. Or make a rig that you can test one at a time. Quote Link to comment Share on other sites More sharing options...
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