ford flex fuel sensor

[opel]

I have it on pin #5 of the MS3X harness, and I confirmed with a data aq that the ffv signal is coming across. Here is a screenshot of scoping pin 5 with ignition on and with the MS3/MS3X un plugged: (sampled at 240hz)

[opel]

OK - my sensor started working randomly today, so I tested out the alpha 11 code, but I dont get any movement on generic sensor input 16, ethanol % gauge is working normally.

[jsmcortina]

Did you enable the temperature measurement option, burn and power off/on ?

James

[opel]

Did you enable the temperature measurement option, burn and power off/on ?

James

D'oh ! sorry.

Turned on temperature measurement and BAM! works like a charm +89 F showing on the gauge. Your coin toss was successful!

Should I expect any problems with 420A/Neon mode on the alpha 11 firmware? Seems to be working flawlessly w/ crank & cam

Thank you James!

[MWPau]

Dragging up an oldish thread...

Does anyone know of a well-priced source for these sensors?
Im in Australia. There are very few flex-fuel cars here so far, so ill probably have to look OS for one.

Thanks!

[ftjandra]

What's the flow direction through the Ford flex fuel sensor? I thought that it didn't matter, but the Alldata screenshot on the first page mentions that the fuel lines are different diameters to make sure that the connections are made correctly. I only have the bare sensor and the threaded holes are both the same size.

Thanks.

[gui67]

Ok, here are a few shots of the ford sensor. Seems it only has the three terminals as the gm sensor.... I couldn't find anything in alldata again about this. so I took the gm stuff and posted it here. I am sure it is identical other than being able to screw an-6 fittings into the ford unit...

Hello,
I installed a ford flex sensor on my car today.
12V on the middle pin (red wire, ground to the black/white wire on the left and signal to the green wire on the right.
I don't think it is working:
the temperature stays at -18°C. It should be around 6°C. Nothing changes when I disconnect the connector.
Is my wiring correct of should I invert the green and black/white wires? Or is the sensor dead?

[gui67]

In fact, it is working, I don't know why it did not yesterday evening.
3% with gas. then I added E85, I got 50% ethanol.

Does the Ford sensor have the same calibration as the GM? I read that 100% ethanol is 125Hz instead of 150.

[gui67]

I did not find the ethanol%age or fuel temperature in the tunerstudio logs.
Is there something to modify to add it in the list of parameters for datalogs?

[jsmcortina]

Those two variables aren't presently in the list of fields to datalog. You can add them to the very end of your "maincontroller.ini" file:
(e.g. in My Documents\TunerStudioProjects\PROJECT\projectCfg)

Code: Select all

   entry =  fuel_pct, "Ethanol Percentage", int, "%d", { flexFuel > 0 }
   entry =  fuel_temp, "Fuel Temp",       float, "%.1f", { flexFuel && (fueltemp1 == 1)}

James

[savagerocco]

What's the flow direction through the Ford flex fuel sensor? I thought that it didn't matter, but the Alldata screenshot on the first page mentions that the fuel lines are different diameters to make sure that the connections are made correctly. I only have the bare sensor and the threaded holes are both the same size.

Thanks.

Direction of flow shouldn't matter, I have run it on the high pressure side and the return side and run thru both directions with out issues. As long as the fuel goes thru it it should read it.

[gui67]

Thanks James

[1BAD6T6]

I know this is an old thread, but I cannot find anything that confirms the thread pitch for the Ford Flex Sensor. I'm adding this to my -6an return line and was hoping someone here can tell me what threads are in the sensor.

Thank you,

Shaun

[jasaircraft]

great to know that with these sensors we can have fuel temp too!
How should fuel temp compensations be? the hotter the more fuel? is there a calibration graph?

I guess these continental sensor can be used?
http://www.ebay.com/itm/13577394-Fuel-C ... a0&vxp=mtr

[mschlang]

I know this is an old thread, but I cannot find anything that confirms the thread pitch for the Ford Flex Sensor. I'm adding this to my -6an return line and was hoping someone here can tell me what threads are in the sensor.

Thank you,

Shaun

Ditto on this, an oring is leaking on mine and I'd like to to swap to a more serviceable style of fitting.

[savagerocco]

Think it is 10x1.5 it is standard nothing funky. I got adaptors to go to an-6

[mschlang]

I found tonight that 100% ethanol is indeed 125hz for the taurus flex sensor. Yesterday I drained the fuel tank, filled with e85 and was still only reporting 58% in TS. Tonight I actually measured a fuel sample and found it was 79% ethanol. When I changed the high frequncy to 125hz TS reported 76% ethanol.

In fact, it is working, I don't know why it did not yesterday evening.
3% with gas. then I added E85, I got 50% ethanol.

Does the Ford sensor have the same calibration as the GM? I read that 100% ethanol is 125Hz instead of 150.