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computer pulses the injectors by connecting them to ground (at least on the trucks), so they get constant power... -
PCM powers and grounds - EVERY one of them has to be good. Since PCM replacement didn't fix it, then all of these need to be good, AND the ground from the computer to the injectors needs to be checked end-to-end. I use halogen headlight bulbs to test powers and grounds. Puts a decent load on the wiring. If they can light up that, then they'll run what they need to run. If you can get the computer to ground and light the bulb using a short jumper, then the wire is bad to the injectors. Also make sure a pin didn't get bent over when plugging the computer connectors back in, and that the female terminal puts enough tension on the male terminal to achieve continuity AND the ability to carry a load. -
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By Grumpy Bear · Posted
Let me introduce you to my Mirage 1.2 three pot with a CVT! Know what a Mirage can pass a Hell Cat Hemi can't? 😉 -
I spent a fair amount of time in the 2018-2024 versions. Had two different Equinox and a Terrain as loaners when my Silverado was down (regularly). I actually really liked them. Very comfortable. Efficient. The GMC was a SLT and had a reasonably nice interior too. And I’ve seen a lot of them go high miles with the 1.5. Unfortunately for me I’d have to go 2.0 because the 1.5 is SO SLOW. I know it’s not a performance vehicle anyway but I just can’t drive that much of a dog. The Malibu I had with the same motor wasn’t much peppier. These tiny engines just can’t move these bigger cars very well. -
By xdieselmechanic · Posted
All injectors are loosing the ground side from the pcm even with all injectors unplugg there is still.no ground pulse on any injector
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