Injectors not firing - Chevy Traverse Forum: Chevrolet Traverse Forum
 
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post #1 of 7 (permalink) Old 12-01-2019, 06:30 PM Thread Starter
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Injectors not firing

I am am in the middle of wiring in a remote start and the car won’t start. I have fuel pressure, the starter engages, and there is spark. When I pulled the plug, the plug was black and completely dry. What would cause them to not fire?

I am getting a P018B (fuel pressure sensor b circuit range performance)/ permanent code. Not sure how this affects the injectors.
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post #2 of 7 (permalink) Old Yesterday, 10:27 AM
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What year vehicle? What brand Remote start? Any tech support form the manufacturer of the remote start and what did instructions did they post on the installation into this particular vehicle?
If you undid all your work and put it back the way it was, would it start then?
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post #3 of 7 (permalink) Old Yesterday, 02:41 PM Thread Starter
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It’s 2017 v6. I am installing a compustar 7900AS. I started the project a few weeks ago and had most of the wires connected except for 5. The starter, 2 parking lights wires, starter kill, and the aftermarket alarm wire. I started the project and tucked everything away until I could get back to it. The car worked just fine for the few weeks while the project was on hold. With that being said, if I undid everything I don’t think the car will start. The only thing I can think of is that I either damaged another wire or blew a fuse. I don’t think the injectors run on fuses. It has to be the injectors as I have 80psi at the fuel rail and the spark plugs are bone dry. I can’t think of anything else.
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post #4 of 7 (permalink) Old Yesterday, 03:42 PM
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pump in tank pushes fuel to the front.
Once at the front- the high pressure fuel pump- attached to the engine-- and is run by an extra lobe on the camshaft--- then sends fuel pressure past 1000 PSI or 1500

2010 FWD LT1-Gold Mist Metallic- seats 8.
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.

2013 Equinox 3.6L - 88,000
2010 Traverse 3.6L- 153,000
2003 Trailblazer 4.2L- 181,500
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post #5 of 7 (permalink) Old Today, 12:58 PM
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I only have the service manual for a 2008-2009 but most of those wiring arrangements are similar to the newer vehicles as well. The odd ignition coils are on one fuse the evens are on another. The injectors share the same fuse and go through the Power Train Relay, and then the ECM. I am trying to share the schematics, but may need a different computer.
The high Pressure Fuel pump is also controlled by the BCM, I am not seeing which fuse that it is fed by.

Last edited by electbc; Today at 01:01 PM.
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post #6 of 7 (permalink) Old Today, 01:15 PM
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Did you install the alarm system yourself and does it include an immobilizer feature?
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post #7 of 7 (permalink) Old Today, 01:38 PM
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