Grant Baker Posted June 26, 2017 Report Share Posted June 26, 2017 Hi,If you have twin fuel lines, do you think you should use twin Ethanol Sensors when using bio fuel or Ethanol?Can you get any Ethanol sensors that have AN fittings rather than push on tails? Quote Link to comment Share on other sites More sharing options...
Ducie54 Posted June 26, 2017 Report Share Posted June 26, 2017 (edited) If you have a return style fuel system I would run it on the return line, that way it's not a restriction in the fuel supply. If it's a dead head system I wouldn't think there wouldn't be any difference in Ethanol % between the 2 lines.Places like Aeroflow make push lock to dash 6AN male fittings. Edited June 26, 2017 by Ducie54 Grammar Quote Link to comment Share on other sites More sharing options...
Grant Baker Posted June 26, 2017 Author Report Share Posted June 26, 2017 Interesting...Having it in the return seems wrong to me as by then the fuel has been to the rail and back, however, I assume that all fuel in the tank would have "mixed" properly and this isn't an issue.Probably overthinking it... Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 27, 2017 Report Share Posted June 27, 2017 (edited) Can you get any Ethanol sensors that have AN fittings rather than push on tails?The EC sensors that we sell have AN6 fittings already fitted. But you can also buy AN fittings that clip on to the "push on tails" from most of the big hose/fitting suppliers. Having it in the return seems wrong to me as by then the fuel has been to the rail and back, however, I assume that all fuel in the tank would have "mixed" properly and this isn't an issue.Probably overthinking it...It is most common to run these fitted in the return. I have even seen them on some "big power" systems where they just bypass a small amount of the fuel through them so that it is not a restriction. Edited June 27, 2017 by Adamw Quote Link to comment Share on other sites More sharing options...
MagicMike Posted June 28, 2017 Report Share Posted June 28, 2017 I run twin rails into single out reg. Sensor on the return to tank. Have also seen as Adam says above, a bypass setup.IMO, only 1 sensor is needed. All the fuel comes from the same tank so shouldn't matter where the sensor is, all fuel should be same content. Generally speaking of course. Like if you have a surge tank and you have just filled up with e85 when you last ran 98 Quote Link to comment Share on other sites More sharing options...
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