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The engine of our TL-S will crank but not start?

Tiny
CRICKETK
  • MEMBER
  • 2003 ACURA TL
  • 3.2L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 275,000 MILES
The engine of our TL-S will crank but not start. Putting spray into the intake, it will start briefly, then shut off. Changed fuel pump and tried new main relay. No way to know if it’s the timing chain. I’ve read about rich/lean but don’t know at all how to approach that. What can we do next?
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Monday, March 13th, 2023 AT 12:09 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
If the MAP sensor stops working, it will not trigger the PCM to start the fuel pump. I would run the codes to see what comes up as well. Here are two guides to help and the location of the sensor in the images below:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

and

https://www.2carpros.com/articles/car-not-running-advanced

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Tuesday, March 14th, 2023 AT 11:56 AM

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