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Fuel temperature from flex fuel sensor

Posted: Mon Nov 20, 2017 10:57 am
by Slowie
Hi

The ability to read fuel temperature from a flex fuel sensor would be great, and would save an extra input, in cases where fuel temperature is required.

Thanks

Re: Fuel temperature from flex fuel sensor

Posted: Mon Nov 20, 2017 6:54 pm
by TimH
If Syvecs/Life Racing can't do this, I could add it to our Mini Expansion Unit easily enough Image

Re: Fuel temperature from flex fuel sensor

Posted: Mon Nov 20, 2017 7:47 pm
by stevieturbo
I think all the flex fuel sensors incorporate this already ?

Not sure whether the ecu is normally configured to accept it though ?

Re: Fuel temperature from flex fuel sensor

Posted: Mon Nov 20, 2017 7:49 pm
by TimH
stevieturbo wrote:I think all the flex fuel sensors incorporate this already ?

Not sure whether the ecu is normally configured to accept it though ?
No, the ECUs don't have support for fuel temp. I asked ages ago.

Also, not all flex fuel sensors measure temperature.

Re: Fuel temperature from flex fuel sensor

Posted: Mon Nov 20, 2017 11:53 pm
by tpepmeie
TimH wrote:No, the ECUs don't have support for fuel temp. I asked ages ago.

Also, not all flex fuel sensors measure temperature.
The Life F88 has a Fuel Correction Multiplier table for Fuel Temp. I figured the Syvecs line would have the same?

Re: Fuel temperature from flex fuel sensor

Posted: Tue Nov 21, 2017 7:09 am
by TimH
Its support for interpreting fuel temperature from the flex sensor that the ecu doesn't have.

Re: Fuel temperature from flex fuel sensor

Posted: Tue Nov 21, 2017 10:22 am
by stevieturbo
tpepmeie wrote:
TimH wrote:No, the ECUs don't have support for fuel temp. I asked ages ago.

Also, not all flex fuel sensors measure temperature.
The Life F88 has a Fuel Correction Multiplier table for Fuel Temp. I figured the Syvecs line would have the same?
As Tim says, you can supply fuel temperature from a regular analogue input....just not via the inbuilt output on a digital flex fuel sensor.

Re: Fuel temperature from flex fuel sensor

Posted: Wed Dec 09, 2020 7:18 pm
by MReilly
I agree on this and reckon it's worth a bump.

Almost seems strange not to have it, even the old DTA ecu can do this.

I wonder, is there a reason perhaps?

Re: Fuel temperature from flex fuel sensor

Posted: Thu Jan 13, 2022 5:37 am
by amdisthebest
Bumping again for good measure.

Fuel temp is output from a standard GM ethanol content sensor with the following linear scale:

1ms PW = -40c
5ms PW = 125c

Maybe there's a sneaky way we can already use this info, if not, it would be killer for the team to add it.

Re: Fuel temperature from flex fuel sensor

Posted: Wed Jun 22, 2022 3:14 pm
by amdisthebest
Just bumping here again. I don’t want to make a list but several other competing ECU’s do this natively. Spanning from some fairly inexpensive units all the way up to the most high end systems out there. Hoping we can get an update to allow this :)