mrfred - curious to see if you are still looking into implementing this. I am going back to racing the Evo (from shifter karts) and could really use this mod in the current patches.

If you need any testing let me know.

Thanks!

 

I've been pretty busy with day job stuff and tuning a few Evos. All my tuning committments are now out of the way, so I do plan to get back to this and finish it up.

 

Awesome


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Looking forward to this for a long time...

 

Cool! If you need any help at all please don't hesitate.

 

my aem is for sale if you get this working lol mrfred is the man

 

Any updates on this patch?


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Still on my list, but no time recently.

 

No worries, just curious!
Thanks

One other question- where did you buy your GM flex fuel sensor from and how much was it? Are they really 350-400$?


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I got mine off ebay. I think I paid around $300. Last I heard, Zeitronix has a good deal on the sensors, maybe a bit less than $300.

 

Good deal. Thanks mrfred


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ok... my local(ish) servo just got FlexFuel...

yay!

so I will be converting my car (once the build is done).

However the flexible nature of flex has me wanting to develop a Flex patch for the Evo10.

What's the easiest/cheapest way to get a Ethanol Control signal to the ECU? I don't need the fancy gauge..

 

The ethanol content sensor outputs a PWM signal, so if you've figured out how to read a frequency-based signal and you know of a spare frequency input, then that's the cheap solution using a sensor. Many newer flex fuel vehicles are relying on the fuel trims to interpolate, so that's another method.

 

well I can probably dig up a spare pulse input on the ECU, but worst case I will get a FTV circuit made up..

since I have 9 altmaps I was just going to assign say 8 to a tune for E50 and 9 to tune for E98 and then manually interpolate..

I don't think boost will change much, so in the immediate it will just be fuel maps and timing that will change...

 

Whats the status of this?