Search found 21 matches

by AdyH
Fri Oct 13, 2023 2:45 pm
Forum: UTCOMP technical support
Topic: "Fuel remaining" on Tacho screen erratic.
Replies: 9
Views: 1545

Re: "Fuel remaining" on Tacho screen erratic.

After further testing I found that even though the display was now stable, it was in fact displaying the wrong Fuel level !. On the bench everything tested ok, but once connected to the UTCOMP, the output of my circuit was being dragged down by the input of the UTCOMP, reducing the output voltage of...
by AdyH
Fri Oct 13, 2023 11:18 am
Forum: UTCOMP technical support
Topic: "Fuel remaining" on Tacho screen erratic.
Replies: 9
Views: 1545

Re: "Fuel remaining" on Tacho screen erratic.

The circuit is obviously not any form of complex digital sampling and averaging, I am not clever enough to design anything like that. It is simply a method of slowing down any rapid voltage readings from the tank sender which is the only thing I could think of to help the situation. I think the low ...
by AdyH
Thu Oct 12, 2023 4:58 pm
Forum: UTCOMP technical support
Topic: "Fuel remaining" on Tacho screen erratic.
Replies: 9
Views: 1545

Re: "Fuel remaining" on Tacho screen erratic.

I have built a small circuit to dampen the fuel sender voltage fluctuations before they go to the UTCOMP. It uses an op-amp configured as a unity gain high impedance buffer, and then a simple capacitor and resistor as a low pass filter to dampen the variations. There is a micro relay to discharge th...
by AdyH
Mon Oct 09, 2023 12:58 pm
Forum: UTCOMP technical support
Topic: "Fuel remaining" on Tacho screen erratic.
Replies: 9
Views: 1545

Re: "Fuel remaining" on Tacho screen erratic.

I have the latest V3.8 software. There is no averaging available on the ADC tab for Fuel Level, only for other sensors.
by AdyH
Fri Oct 06, 2023 3:58 pm
Forum: UTCOMP technical support
Topic: "Fuel remaining" on Tacho screen erratic.
Replies: 9
Views: 1545

Re: "Fuel remaining" on Tacho screen erratic.

Ok thanks for that. I thought you would have used the same fuel tank level signal as used by the Fuel Tank screen, rather than try and calculate it from the fuel consumption. Hopefully the "Miles Remaining" on the same Tacho screen will not fluctuate as much as the Fuel Remaining.
by AdyH
Wed Oct 04, 2023 5:06 pm
Forum: UTCOMP technical support
Topic: "Fuel remaining" on Tacho screen erratic.
Replies: 9
Views: 1545

"Fuel remaining" on Tacho screen erratic.

I have been calibrating the Fuel Level on the UTCOMP. I have got it pretty accurate now. The Fuel Tank screen shows quite accurate level information. The Fuel remaining on the Tacho screen however does show the same figure but only when the vehicle is stationary. If the vehicle is moving and corneri...
by AdyH
Wed Mar 03, 2021 7:44 pm
Forum: UTCOMP technical support
Topic: Cannot get MAP boost to read correctly.
Replies: 10
Views: 6619

Re: Cannot get MAP boost to read correctly.

Thanks for that ArT. I will update and check it over the next few days.
Thanks
by AdyH
Thu Feb 25, 2021 3:30 pm
Forum: UTCOMP technical support
Topic: Cannot get MAP boost to read correctly.
Replies: 10
Views: 6619

Re: Cannot get MAP boost to read correctly.

Ok. I will use BAR for now.
Thanks
by AdyH
Thu Feb 25, 2021 1:59 pm
Forum: UTCOMP technical support
Topic: Cannot get MAP boost to read correctly.
Replies: 10
Views: 6619

Re: Cannot get MAP boost to read correctly.

Ok ArT, I have changed the units to BAR. With the engine off the display reads +0.0 BAR. With the engine running at Idle the display reads -0.5 BAR which is about right for my Idle at 48kpa. Why a minus value will not show using PSI as the units I don't know.
Thanks
by AdyH
Tue Feb 23, 2021 11:52 am
Forum: UTCOMP technical support
Topic: Cannot get MAP boost to read correctly.
Replies: 10
Views: 6619

Re: Cannot get MAP boost to read correctly.

I want to use PSI for my boost and Oil Pressure, not BAR. The UTCOMP is claimed to support units of BAR and PSI. Is there no way of making boost read correctly with PSI ?.
Is this a bug in the software that needs addressing ?
Thanks

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