Can you say at what flow it had problems??
My MPGunio and my Scan Gauge II both show my Ford uses around .50 GPH at idle so was it below that rate where it has problems??
The last one linked is rated for 2.0 LPH what is that in Gals?
BUT this one:
https://www.futurlec.com/Flow_Sensor.shtml is rated for 0.8 to 8.0 L/min Flow Sensor
I believe that is : 0.21 US gallons per hour which is lower that I can hope to reach...But it is limited to 2.11 US gallons Per hour which will not read well at WOT but then who is worried at WOT??
And if I want to know I can run the OTHER flow meter for the higher readings as it runs from 2.0 – 30 liter/hour flow rate.
Rich