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Flex fuel Sensor ERROR need help

zadam10

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I am currently FBO with a zeitronix ECA 2 flex fuel ki, and I’m in the process of sending data logs back and forth with my tuner for a flex fuel tune. Recently, I’ve noticed an issue with my ethanol gauge. Occasionally, it randomly drops to 0 and then spikes back up to around 50 (E50). This fluctuation seems to happen at random intervals. Since the sensor is what adjusts the tune, each time the gauge stops reading, I experience zero turbo spool for about 5 seconds—even if I floor the gas, the turbo won’t spool even 1 psi. This happens every time the ethanol gauge stops reading.this has only been happening to me the past couple 4 days and I've had this installed for 1.5 months and haven't had this issue

I'm wondering if anyone else has encountered this issue or knows what could be causing the problem with the sensor. I initially thought it might be related to the tune until I saw the gauge turning on and off randomly. I’ve checked the wires spliced into the ECU, and everything seems intact. I'm stuck and unsure what to do from here. Any help or advice would be greatly appreciated. Thanks in advance!
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Thraxbert

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My guess is wiring. I know you said you checked it, but this could easily be explained by a dodgy/intermittent ground or a piggyback harness that isn't quite secured.

You could also order a replacement Continental-brand ethanol sensor and try that. Send it back if it's not the issue.
 
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zadam10

zadam10

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Adam
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A90 Supra
My guess is wiring. I know you said you checked it, but this could easily be explained by a dodgy/intermittent ground or a piggyback harness that isn't quite secured.

You could also order a replacement Continental-brand ethanol sensor and try that. Send it back if it's not the issue.
My guess is wiring. I know you said you checked it, but this could easily be explained by a dodgy/intermittent ground or a piggyback harness that isn't quite secured.

You could also order a replacement Continental-brand ethanol sensor and try that. Send it back if it's not the issue.
I’m not sure what other wires to check. The ground looks fine. I checked it. The wire is going to the ECU look fine. The wires in the turbo are secured and the fuel lines are still in place. I don’t know what else could be the problem. could it just possibly have gone bad
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