Dismiss Notice

Register Today It's free! This box will disappear once registered!

92 Ranger, no inj pulse, bad pcm?

Discussion in 'Ford Ranger - Mazda B-Series Forum' started by Tyrel, February 15, 2018.

  • Searches ExplorerForum.com
    1. Tyrel

      Tyrel New Member

      May 23, 2016
      Likes Received:
      Trophy Points:
      City, State:
      Year, Model & Trim Level:
      96 Ford Explorer
      I'm working on a 92 ranger with 3.0 v6. Iv determined so far there is no injector pulse to right bank front cylinder using a noid light. There is the correct 12v supply to the injector, but the ground isn't pulsing. Checking there is continuity from injector ground to pcm, and it isn't shorted to ground. To me it seems the pcm isn't telling it to fire, but just looking for input before replacing it. Using a dvm, if you check from batt positive and the negative dvm lead to the inj ground it shows 12v like its shorted out, but if you check with test light from batt positive to inj ground it doesn't light up. Seems like the pcm is internally shorted??
    2. Support EF

      Join the Elite Explorers for $20

      Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose fix problems yourself, and learn which modifications work without having to experiment on your own. Elite Explorer members see practically no ads, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create more private Conversations, and more. Join Today. Your support is greatly appreciated.

      to hide adverts.

    Share This Page

    We Support Our Troops!