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FreeFuel ECU patch - a flex fuel implementation to Evo ECU

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Old Apr 11, 2019, 01:33 PM
  #451  
kaj
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Originally Posted by ronaldo9
What size injectors are you guys using that still behaves well on pump gas and stock ecu?
I'm using 1050s, but I'm also not looking for more than 450whp.
I had 1450s before that and didn't like the way the car ran.
Both the sets = low z and FIC.
I plan to swap to high Z in the near future to smooth things out even more.
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Old Apr 11, 2019, 03:41 PM
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Originally Posted by ronaldo9
What size injectors are you guys using that still behaves well on pump gas and stock ecu?
I ran FIC low-z 1220s and they worked fine on the stock ecu. Now on FIC high-z 1200s with AEM ecu and they work fine too.
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Old Apr 12, 2019, 10:09 AM
  #453  
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Just so you guys know, I looked at one of the AEM ethanol sensors to see who its made by. So AEM gets them from GM who gets them from Continental....



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Old Apr 12, 2019, 12:28 PM
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Last question are you guys just using the sensor and pigtail to ecu or also using a gauge display to see the content as well?
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Old Apr 12, 2019, 12:39 PM
  #455  
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I'm using an Innovate gauge in order to send a signal to the ecu. I don't know that the ROM can translate voltage straight from the sensor. Plus, It's fun to open up my glove box and take a peek at the ethanol %.
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Old Apr 12, 2019, 07:12 PM
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Originally Posted by kaj
I'm using an Innovate gauge in order to send a signal to the ecu. I don't know that the ROM can translate voltage straight from the sensor. Plus, It's fun to open up my glove box and take a peek at the ethanol %.
It cant.

An Ethanol sensor spits out a frequency, not a voltage. That's why a controller/gauge part is needed.
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Old Apr 13, 2019, 01:13 AM
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Originally Posted by ronaldo9
What size injectors are you guys using that still behaves well on pump gas and stock ecu?
I am using FIC2150
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Old Apr 13, 2019, 01:16 AM
  #458  
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Originally Posted by kaj
I'm using 1050s, but I'm also not looking for more than 450whp.
I had 1450s before that and didn't like the way the car ran.
Both the sets = low z and FIC.
I plan to swap to high Z in the near future to smooth things out even more.
1450cc were considered bad injectors.
I have ran FIC1650 High Z, the new bosch ones, and they were a pain to tune but ran perfectly once tuned on both pump and ethanol.
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Old Apr 13, 2019, 01:19 AM
  #459  
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Originally Posted by ronaldo9
Last question are you guys just using the sensor and pigtail to ecu or also using a gauge display to see the content as well?
You will need a gauge like Innovate that has a 0-5v output, because you will need to wire the output from the gauge to the ECU.
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Old Apr 13, 2019, 09:39 AM
  #460  
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I have a zietronix setup, will this work?

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Old Apr 13, 2019, 01:48 PM
  #461  
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As long as it has a 0-5v output, I don't see why not.
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Old Apr 14, 2019, 10:27 AM
  #462  
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This is off Zeitronix owner's manual.
So yes, it will work.

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Old Nov 25, 2019, 08:21 PM
  #463  
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How many more evo ix need to be parted out before the flex fuel rom gets released? 🥵
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Old Nov 27, 2019, 10:28 PM
  #464  
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Originally Posted by gSx
How many more evo ix need to be parted out before the flex fuel rom gets released? 🥵
IX FlexFuel has been out since forever ago.
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Old Nov 28, 2019, 06:04 AM
  #465  
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Originally Posted by kaj
IX FlexFuel has been out since forever ago.
Send it over then. I'll put it to use.
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