Let me go order a GM sensor and see if I can get it working as the first step
![Smile :)](./images/smilies/icon_e_smile.gif)
Sensor logic would be https://github.com/rusefi/rusefi/issues/540
Pin "#1" is the one closer to the connector.
GM 13507128
That's exactly what some newer vehicles do (use the wideband instead of ethanol sensor). If there's a large change in LTFT, they throw a code. If there's a large change in LTFT just after the fuel level went up significantly, it means you increased/decreased the ethanol content in the tank.DonaldBecker wrote: ↑Mon Nov 11, 2019 9:02 pmWhat I haven't been able to figure out is what the FF sensor actually does that a wideband exhaust sensor couldn't do better. For an OEM it might let them avoid a previously-expensive wideband system, avoid raising long-term-fuel-trim errors, and perhaps optimize the power vs emissions if they know e85 is being used.
Not 100% sure what you meanCrazy Striker wrote: ↑Mon Nov 11, 2019 5:20 pmI could not find a "tree" of the code structure on which I could work.
Does someone have that ?
Important update: my flex sensor is not lost, I've seen it today! First post now has a picture of it
I'll see if I can put something together. It'll be a very basic fuel compensation strategy for now.Not planning to work on any flex code in the foreseeable future but would love to review pull requests.
first step is sensor logic and a gauge of fuel composition. There is slack talk of this at https://app.slack.com/client/T4NJHQ8QZ/CJTJ9CFJR/thread/
On the one hand, it's not complicated to actually read the sensor. On the other hand, there are only ~five software developers who made code changes in the last three months and each and every of these software developers had not yet implemented the software change necessary.
That's the plan.
You caught me, I don't play any games...they all bore the shit out of me, I just can't for the life of me understand the point of them. I make things that are real when I have time...today I'm working on retaining wall then a patio, killing time until the lockdown ends and I can take my crank to the shop and get back to the engine rebuild. No time for games......
Step 1: someone posts a picture of a vehicle with rusEFI ECU and flex sensor installed.