Lost Communication with Fuel Pump

Back To Pray · 05-10-2021, 12:45 AM

Anyone have any experience with a “Lost Communication With Fuel Pump Control Module” U0109 code?

It’s the strangest thing, it only happens when it’s humid out.
I listen under the car to hear the engaging of the fuel pump, and it makes no noise.

The issue seems to correct itself after the weather clears up.
I don’t know what the issue is and I don’t know how to pinpoint it, and the dealer doesn’t seem to know either after several visits to their service department.

Let me know, do you have any experience with this kind of issue?
Do you know of a reputable performance shop in the DFW area?
Thanks

05-10-2021, 12:45 AM	#1
Back To Pray Drives: Fireball 700 Join Date: May 2017 Location: TX Posts: 21	Lost Communication with Fuel Pump Anyone have any experience with a “Lost Communication With Fuel Pump Control Module” U0109 code? It’s the strangest thing, it only happens when it’s humid out. I listen under the car to hear the engaging of the fuel pump, and it makes no noise. The issue seems to correct itself after the weather clears up. I don’t know what the issue is and I don’t know how to pinpoint it, and the dealer doesn’t seem to know either after several visits to their service department. Let me know, do you have any experience with this kind of issue? Do you know of a reputable performance shop in the DFW area? Thanks Last edited by Back To Pray; 05-10-2021 at 10:19 AM.

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