No Start Diagnostics (1992 Chevy Lumina 3.1)

Once again the purpose of this video is to teach you "direction". What do you test first, where do you go next?  

Engine Performance Diagnostics chapter 18

symptoms 50

  • start/stall
  • no spark
  • rough idle
  • hesitation
  • misfire

fix 50

  • replace shorted fuel injectors

test shown enh 50

  • why the check engine light is important when the key is turned on
  • how to test for spark on a waste spark ignition coil
  • how to check for injector pulse
  • how to remotely crank an engine over
  • how to perform an injector current ramp test

Tools used

  • remote starting tool (Matco FT - 101A)
  • Snap-on Vantage (MT 2400)
  • incandescent test light
  • inductive low amp probe

end faq

Playlist

(Chapters 17, 18 and 19) Fuel Injector Testing

Related videos:

No Start No injector pulse (shorted injector) part 1:

No Start No injector pulse (shorted injector) part 2:

GM 3300 Intermittent no start rough idle (shorted injectors) part 2:

Rough idle, MAP code 33, intermittent no start (shorted injectors) - GM:

end faq


For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available as an eBook or paper book.

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