No engine start spray fluid in starts

Tiny
BILL STRATHERN
  • MEMBER
  • 2003 CHEVROLET CAVALIER
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
Spray fluid in starts. Pump is good no codes show up no codes stored. This is ecotec. I have tried to go through theft sequence not getting anywhere. Also have read three versions of this key on and off for ten minute intervals. Should I be looking at something else and if you think is vat? Please tell me right way. Thanks
Monday, August 13th, 2018 AT 2:52 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,716 POSTS
Hi and thanks for using 2CarPros.com.

If you tried the sequence of allowing the key on for ten minutes and the anti-theft light is not flashing, then I think you have a different problem. Since it is fuel related, I will assume that the pump is producing pressure within the manufacturer's specs. However, I want you to check something. There is a relay in the under hood relay box which is for both the pump and the injectors. I want you to switch that relay with a different one from the box that has the same part number. I have attached pictures of the relays, locations, legends for you to see.

Next, if you did not actually check fuel pump pressure, I would recommend doing if even of you hear the pump engage. It may be too low. And finally, I want to know if the injectors are getting power. Here are two links which show how to check pressure and the injectors:

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

The manufacturer's specs for pump pressure:

Fuel Pressure (Key On, Engine Off) 345-414 kPa (50-60 psi).

Let me know what you find or if you have other questions.
Take care,
Joe
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Wednesday, June 16th, 2021 AT 3:35 PM
Tiny
BILL STRATHERN
  • MEMBER
  • 8 POSTS
The injectors and pump are not working. Tested the pump which is new it works. There for no pressure to front rail. Theft light is out I put new relays in pump spot and crank spot. Did not check regulator with no pressure.
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Wednesday, June 16th, 2021 AT 3:35 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,716 POSTS
Have you confirmed fuses are good? There is a fuse designated for the injectors / fuel pump. If the fuse is good (check for continuity to confirm) make sure there is power to the fuse. See attached.

Let me know.

Joe
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Wednesday, June 16th, 2021 AT 3:35 PM
Tiny
BILL STRATHERN
  • MEMBER
  • 8 POSTS
Fuse was bad I replaced it. Now it runs thank you.
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Wednesday, June 16th, 2021 AT 3:35 PM

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