False flow readings from flow sensor.

[johntotah94]

Originally Posted by Howerton Engineering

We have worked on this with a few customers lately, and found the negative battery cable is also a source of noise. It seems the source of noise is different from car to car, but there always seems to be something causing it.

Of the installs I've been involved with I have never experienced this first hand so all I can do is pass on what others are reporting and coming up with.

How did you end up blocking the noise from the battery cable?
I am getting a lot of noise leaving the flow sensor gauge bouncing around with my HFS-4 in my Mini Cooper S