Does the EVAP close valve use the same ground from the ECM as the fuel pump? I need engine wiring diagrams

Tiny
RD66
  • MEMBER
  • 2008 KIA SPECTRA
  • 2.0L
  • 4 CYL
  • 2WD
  • MANUAL
  • 160,000 MILES
ECM ground distribution. Is there a ground distribution diagram for the ECM? I need engine wiring diagrams
Monday, May 2nd, 2022 AT 9:36 PM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,446 POSTS
No, they do not, the fuel pump ground is under the rear seat while the ECM ground is under the dash on the left side here are the engine wiring diagrams so you can see what I am talking about and how the system works.

This guide can help you check the wiring as well:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Tuesday, May 3rd, 2022 AT 6:13 PM
Tiny
RD66
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Doesn't the close valve get ground from the ECM?
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Tuesday, May 3rd, 2022 AT 7:12 PM
Tiny
KEN L
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Sorry yes it does, the PCM closes the ground, does the valve have power with the key on? If not check the injector fuse 15 amp. Here is a guide to help:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and the fuse location in the diagrams below. Check out the diagrams (below). Please let us know what happens.
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Wednesday, May 4th, 2022 AT 12:13 PM
Tiny
RD66
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Yes, it has power with the key on. I'm trying to figure out if it's getting ground.
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Wednesday, May 4th, 2022 AT 7:46 PM
Tiny
KEN L
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The ground will be connected through the ECM.
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Thursday, May 5th, 2022 AT 9:46 AM

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