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  1. 1

    88 TBI injectors pulsing after motor dies

    Sorry it's been a couple weeks. I checked to see if the injectors still chattered after the ignition was turned off then back on again. It took a few tries until the injectors continuously pulsed like in the video, and the chattering DID continue after turning the key off, then back on again...
  2. 1

    88 TBI injectors pulsing after motor dies

    Mine also runs pretty constant (or so fast they naked eye can't see it). I am assuming the frame rate of the camera makes it appear to pulse at a lower rate. I did notice that when I took the video, but forgot to mention the camera caused this effect.
  3. 1

    88 TBI injectors pulsing after motor dies

    Just for fun, I wanted to see how long it took again to act up. At first startup it wanted to idle down and die, but I got it to stay alive. Idled about 10 minutes before it died. I pulled the TPS plug as it was starting to die and it made no change. This time it seemed like on the the passenger...
  4. 1

    88 TBI injectors pulsing after motor dies

    Wowza! Lots of info all at once! I really do appreciate the help. I'm a very visual learner/teacher, so the video is my way of telling y'all what exactly the problem is without trying to explain just how the flux capacitor is fluxing lol. I also want to learn and do it myself instead of taking...
  5. 1

    88 TBI injectors pulsing after motor dies

    The original video was longer, I shortened it quite a bit. From the time the engine died, there was 40 seconds worth of injector cycling in the video. Then I walked around and turned the key off with the injectors still trying to cycle, so who knows how long it would have actually gone. I have...
  6. 1

    88 TBI injectors pulsing after motor dies

    Awesome, thanks for the tip! I'll try that this evening when I get home. This is a 5.7 without a tach. I only notice the issue because the truck starts to sputter. Speed, RPM, and Run Time seem to have absolutely no bearing on the issue. I managed to get a video of it happening and put it on...
  7. 1

    88 TBI injectors pulsing after motor dies

    Hi All, I have an 88 2wd GMC that has recently been dying on me. The issue is extremely random, but becoming more often. When driving or idling, the injectors will start skipping and the engine will sputter and often die, but even after the engine is dead, the injectors will continue firing with...

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