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Codes p16a7 and p16af, shut off while driving, engine cranks but does not start?

Tiny
STRAIGHTUPLAZYLIFE
  • MEMBER
  • 2019 CHEVROLET EQUINOX
  • 1.5L
  • TURBO
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
The vehicle listed above has FWD. Car cranks no start. The engine turns off while driving when it first happened. Won't start just constantly cranking. The only way to get it to start is spraying starter fluid into the intake. And stop instantly after. Already check fuel pump. Check fuel rails. Check spark plugs and ignition coils. Good battery replaced it again while working on the car. The alternator was replaced beforehand and vacuum pump. Check fuses. Checked fuel pressure. Checked replaced and programmed the ECM at dealership. I don't know what else it could be at this point. The codes I'm receiving now are p16a7 and p16af.
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Friday, August 11th, 2023 AT 4:30 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,356 POSTS
So, they changed the PCM at the dealer? Because these codes are for a Hybrid car?

P16A7: This code indicates a problem with the hybrid powertrain control module's (HPCM) internal temperature sensor A being out of range or malfunctioning.

P16AF: This code also relates to the hybrid powertrain control module (HPCM) but specifically points to a problem with internal temperature sensor B being out of range or malfunctioning.

I would take it back to the dealer and ask them about the codes. Also, it sounds like the high-pressure fuel pump has gone out. Check out the images (below). Please let us know how it goes.
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Saturday, August 12th, 2023 AT 2:41 PM

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