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Old 01-15-2019, 09:56 PM   #226
fbi
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Quote:
Originally Posted by Stija View Post
You can get them at Chinese eBay sites for fraction of price, 10 pieces for 10$.

I did buy from ballenger, but that wasnít my question. Either way I think I found them.

Now all thatís needed is a small water tight enclosure for the arduino, ideas? Are you just following this thread or have you actually built one too?
Yes, I found many. Little box, two screws in the top with rubber gasket. I'd probably drill and silicone the through the side. Maybe... MAYBE use a grommet and make it look good.


Something like this:

https://www.makexyz.com/3d-models/order/9508558ffb033561b1bae6dedb56658a
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Old 01-15-2019, 10:03 PM   #227
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That looks good, although Iíd change it a bit and have only one hole with a grommet.

I was thinking Velcro and attach it to top or side of fuse box?
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Old 01-16-2019, 10:33 PM   #228
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We’re getting there..





I ordered wrong oxygen connectors so this will be tested by manually connecting it to battery with car running. If it works, I will order proper connectors for a plug and play application. Waiting on fuel lines and then testing some time next week.

Last edited by Stija; 01-17-2019 at 01:15 AM.
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Old 01-18-2019, 11:57 AM   #229
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Fuel lines readily available at Oreillys for 15$ with tax included for a pack of 5, 6.99$ for a pack of 2. That is if you want to use nylon lines 3/8”.

Can someone post or help with correct oxygen sensor connectors, both sides. The ones posted before will NOT plug into our oem MY15+ OEM connectors for a true plug and play application. But they will work for any application where one is not running their oxygen sensor and can sacrifice cutting one of their oem connectors, like OP did, if that makes sense.
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Old 01-18-2019, 07:01 PM   #230
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So had a chance to try it out today. Found out I also have wrong fuel connectors. The sensor is 3/8” steel and the car is 5/16” steel. Didn’t work.

Ordered dorman 800-119 and 800-092.5 (box of five). These will work for MY15+ application on the CAR side. Sensor side requires previously referenced dorman quick connectors.

Took me all 15 min to install it first time and 5 to get it back to oem.

ADDENDUM: I went with 5/16 lines and corresponding connectors except for ones that connect to the flex sensor because those have to be 3/8 steel line to 5/16 barb for nylon hose. Oem is 5/16 so I figure I would like to keep it oem and also avoid any potential issues with the flow because of going from 5/16 to 3/8 then back to 5/16 two feet later.

Last edited by Stija; 01-19-2019 at 12:28 AM.
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Old 01-19-2019, 12:14 PM   #231
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I just tested mine with 3/8” cuz I had to find out whether it would work and it did.

I’m getting a 0.80-0.82v reading on my left tgv and also two codes, most likely due to the signal going into the tgv. Gonna return car to normal and off to work.

It works!
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Old 01-19-2019, 03:36 PM   #232
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I canít believe Iím the only one getting excited about this, it works I said. There is 7.5% ethanol in my Costco 91oct.

Next up making it all pretty and using oxygen connectors for a power source. Also I should test the fuel somehow to make sure itís reading correctly or calibrate it.
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Old 01-19-2019, 03:52 PM   #233
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Quote:
Originally Posted by Stija View Post
I canít believe Iím the only one getting excited about this, it works I said. There is 7.5% ethanol in my Costco 91oct.



Next up making it all pretty and using oxygen connectors for a power source. Also I should test the fuel somehow to make sure itís reading correctly or calibrate it.
yep we know it works, many have benefited from this

Totally understand the excitement!
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Old 01-19-2019, 04:23 PM   #234
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Originally Posted by ShinjiML View Post
yep we know it works, many have benefited from this

Totally understand the excitement!
So psyched, can hardly contain it.

Has it been reliable? How has the arduino coped with engine heat? I mean I have 4 extra...
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Old 01-22-2019, 01:00 PM   #235
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Conn-85988 is the proper extension for (MY15+ WRX) a plug and play flex fuel system at Ballenger motor sports, for anyone hunting connectors down.

Last edited by Stija; 01-22-2019 at 01:20 PM.
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Old 02-09-2019, 06:49 PM   #236
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Arduino Flex Fuel Kit Installed Today on my 17 WRX. Many thanks to Stija for the 15+WRX connectors and fuel line part numbers. Now need to get a E30 tune![IMG]

Last edited by mxm64; 03-08-2019 at 11:45 AM.
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Old 02-09-2019, 06:54 PM   #237
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Very nice looking!
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Old 02-17-2019, 08:29 PM   #238
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Quote:
Originally Posted by Stija View Post
So psyched, can hardly contain it.

Has it been reliable? How has the arduino coped with engine heat? I mean I have 4 extra...
Iíve had mine going for about 8 months now, no issues. Protuned as well, no issues there either. I mounted my box up under the dash in the drivers foot well, so I canít speak to it withstanding engine heat. As long as you have it mounted somewhere out of the way you should be fine!
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Old 02-19-2019, 03:10 PM   #239
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One of these days I'll have to get into Arduinos and try this out for my old 16-bit ECU.
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Old 02-19-2019, 03:32 PM   #240
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I bought knock off / rebranded Arduino Nano. It's not plugged into the car yet, but everything seems to be working fine.
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Old 03-07-2019, 10:52 PM   #241
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So I got my arduino all set up and ready to go for the most part. But I'm having some trouble deciding on the length of the wire leads. Did you guess and cut the wires to a decided length? Did you crawl under the car plug everything in then cut the wires to length before soldering them to the arduino. Anyone have the lengths they chose for each lead?
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Old 03-07-2019, 11:19 PM   #242
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Quote:
Originally Posted by Stija View Post
Fuel lines readily available at Oreillys for 15$ with tax included for a pack of 5, 6.99$ for a pack of 2. That is if you want to use nylon lines 3/8Ē.

Can someone post or help with correct oxygen sensor connectors, both sides. The ones posted before will NOT plug into our oem MY15+ OEM connectors for a true plug and play application. But they will work for any application where one is not running their oxygen sensor and can sacrifice cutting one of their oem connectors, like OP did, if that makes sense.
Can u send me a list of everything you are using?
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Old 03-07-2019, 11:21 PM   #243
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Originally Posted by HyperBSTI View Post
So I got my arduino all set up and ready to go for the most part. But I'm having some trouble deciding on the length of the wire leads. Did you guess and cut the wires to a decided length? Did you crawl under the car plug everything in then cut the wires to length before soldering them to the arduino. Anyone have the lengths they chose for each lead?
Where did u get all your parts!
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Old 03-08-2019, 08:09 AM   #244
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Quote:
Originally Posted by Bowezz84 View Post
Where did u get all your parts!
-Got arduinos, resistors & regulator from Amazon.
-Connectors from Bmotorsports per the first post.
-Got the GM Flexfuel connector from Amazon. Skipping the modification to the sensor to use the delphi connector.
Also got the enclosure and wire sheathing from Amazon.

If you need specifics I can dig them out. I just need wire lengths to finish it up. Was kinda hoping not to go crawl under my car with the freezing temps.
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Old 03-08-2019, 08:40 AM   #245
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Quote:
Originally Posted by HyperBSTI View Post
-Got arduinos, resistors & regulator from Amazon.
-Connectors from Bmotorsports per the first post.
-Got the GM Flexfuel connector from Amazon. Skipping the modification to the sensor to use the delphi connector.
Also got the enclosure and wire sheathing from Amazon.

If you need specifics I can dig them out. I just need wire lengths to finish it up. Was kinda hoping not to go crawl under my car with the freezing temps.
That would be awesome if itís not to much trouble. Are u doing a straight plug and play like Cobb setup?
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Old 03-08-2019, 08:44 AM   #246
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Quote:
Originally Posted by HyperBSTI View Post
-Got arduinos, resistors & regulator from Amazon.
-Connectors from Bmotorsports per the first post.
-Got the GM Flexfuel connector from Amazon. Skipping the modification to the sensor to use the delphi connector.
Also got the enclosure and wire sheathing from Amazon.

If you need specifics I can dig them out. I just need wire lengths to finish it up. Was kinda hoping not to go crawl under my car with the freezing temps.
Also do u have the part number of the enclosure and wire sheathing u used?
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Old 03-08-2019, 09:33 AM   #247
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ELEGOO for Arduino Nano V3.0, Nano Board CH340/ATmega328P Without USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 Without Cable)

Flex Fuel Composition Sensor E85 13577429 for 12-13 GM Impala
NTE Electronics HW233 Metal Film Flameproof Resistor, 1/2W, 2% Tolerance, Axial Lead, 3.3K Ohm (Pack of 6)

NTE Electronics NTE964 Integrated Circuit 3ĖTerminal Positive Voltage Regulator, TO-220 Package, 1 Amp Output Current in Excess, 8V Output Voltage

NTE Electronics HW247 Metal Film Flameproof Resistor, 1/2W, 2% Tolerance, Axial Lead, 4.7K Ohm (Pack of 6)

Boost Monkey E85 Flex Fuel Sensor Connector Pigtail Plastic Body Flex Fuel Composition Ethanol for GM (Connector only)
25ft - 1/4 inch Flexo PET Expandable Braided Sleeving

Eightwood Extruded Aluminum Box Electronic Project Enclosure Case DIY Box- 1.97"x0.98"x0.98" (LWH)

As far as the TGV and O2 sensors go look at the connectors linked on the first post. I pretty much followed his word for word as far as components go. The only thing I did differently is I bought the O2 sensor extension. It has both plug ends and 12" of wire between them already. I will be splicing my wires into the power and ground wires of that extension. Depending on whether you have a EJ25 or a FA20 your connectors may be different as well.

Also I just want to note that I have no guarantee that these components will work. I have the arduino sketch loaded but have not been able to test the system so purchase this stuff at your own risk.
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Old 03-11-2019, 04:07 PM   #248
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Quote:
Originally Posted by HyperBSTI View Post
ELEGOO for Arduino Nano V3.0, Nano Board CH340/ATmega328P Without USB Cable, Compatible with Arduino Nano V3.0 (Nano x 3 Without Cable)

Flex Fuel Composition Sensor E85 13577429 for 12-13 GM Impala
NTE Electronics HW233 Metal Film Flameproof Resistor, 1/2W, 2% Tolerance, Axial Lead, 3.3K Ohm (Pack of 6)

NTE Electronics NTE964 Integrated Circuit 3ĖTerminal Positive Voltage Regulator, TO-220 Package, 1 Amp Output Current in Excess, 8V Output Voltage

NTE Electronics HW247 Metal Film Flameproof Resistor, 1/2W, 2% Tolerance, Axial Lead, 4.7K Ohm (Pack of 6)

Boost Monkey E85 Flex Fuel Sensor Connector Pigtail Plastic Body Flex Fuel Composition Ethanol for GM (Connector only)
25ft - 1/4 inch Flexo PET Expandable Braided Sleeving

Eightwood Extruded Aluminum Box Electronic Project Enclosure Case DIY Box- 1.97"x0.98"x0.98" (LWH)

As far as the TGV and O2 sensors go look at the connectors linked on the first post. I pretty much followed his word for word as far as components go. The only thing I did differently is I bought the O2 sensor extension. It has both plug ends and 12" of wire between them already. I will be splicing my wires into the power and ground wires of that extension. Depending on whether you have a EJ25 or a FA20 your connectors may be different as well.

Also I just want to note that I have no guarantee that these components will work. I have the arduino sketch loaded but have not been able to test the system so purchase this stuff at your own risk.
Got it... when will you test it out?
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Old 03-13-2019, 07:22 AM   #249
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Got it... when will you test it out?
I dunno right now. Been really busy installing the AOS and a new inlet because I broke the crank vent nipple off the oem one. Plus getting everything else ready for my protune.
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Old 03-13-2019, 09:57 AM   #250
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Just found this thread, quite awesome to see this DIY option. i am strongly considering to try it out.

I have a question about tuning with this setup. Is it fully equivalent to Cobb FF kit? In other words, if I communicate with a tuner do I just say that my car has XYZ mods plus a Cobb Flex Fuel kit?

or do I need to offer any specific details about this set up as an equivalent to Cobb's kit?

What company or tuner do you use for tuning your cars with FF kit?
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