Ethanol Content = 0%

[spAdam]

Hello,

Just got my car running with a new engine harness and flex fuel sensor. I'm surprised to see the ethanol content reading 0%, especially with fuel from a regular gas station here in southern California. Temperature is working, so I know the sensor is alive. I've attached a short log and a cal to look over, can you just make sure everything looks correct? I'd like to confirm function before adding E85 to the equation :)

Resistor is wired in near sensor end of loom like so, and booted with Raychem SCL:

[crluver123]

the photo isn't showing up

[Hondata]

The fuel temperature matches the ambient temperature so I think it is working, but you should see 8-9% ethanol in pump gas. Let me double check this software version before you do any trouble shooting.

[spAdam]

Thanks Hondata! Wasn't even expecting a reply ion a Saturday.

the photo isn't showing up

Yeah I noticed that. Still getting used to the fact that Google Photos doesn't work the same as photobucket used to back in the day. Added to this post as an attachment.

[DaX]

Don't know if it's on my end or your end, but the log and/or calibration you attached is corrupt or wacky when I try to open it.

[spAdam]

I recorded it using the beta software version. i just tried to open it on the current version and it also looked wacky there.

[Spunkster]

You have the Analog 0 setup as an ethanol input with a custom conversion set to AF ratio with no voltages specified. Change analog 0 to unused instead. Make a new datalog with that calibration and see if it reads correctly then.

[spAdam]

You have the Analog 0 setup as an ethanol input with a custom conversion set to AF ratio with no voltages specified. Change analog 0 to unused instead. Make a new datalog with that calibration and see if it reads correctly then.

Good catch. I must have fat fingered that as I've never used a lambda sensor on that input. Here's another, still having the issue. Fuel temp is working as expected, I watched it warm up while I was idling the car trying to see if I could get it to work. Attached a log of a quick beer run and a new cal.

[Spunkster]

From Help, About, what is the version of software that you are using?

[spAdam]

2.7.3.0. I tried backdating to see if that fixed the issue and forgot to re-update. I have been running on 2.7.5. That's my bad, I should have communicated that.

[Spunkster]

Only use 2.7.5 once you have updated. I have verified that this is working correctly using 2.7.5.

[spAdam]

Copy. Will do and will get back to you.

[spAdam]

Okay, so I reinstalled 2.7.5, confirmed settings and re-ran. Same result. Starting to lean toward a bad sensor as I’m confident in the wiring. Also since it’s giving good temp numbers I know it’s alive. Just seems strange that it could do one without the other.

[Spunkster]

Do you have any friends that have a flex fuel sensor you could borrow or try your sensor on their car?

[spAdam]

Yes but unfortunately he is out of town for the holiday. For $36 I went ahead and picked up a fresh one. We’ll see what we find tomorrow.