aidandj

iTrader: (5)

Haven't gotten to it yet. I got a new oscope (an AWESOME MDO4104), and a lab power supply so I might do some tests sometime. Summer is really busy, fall and winter things will calm down and I can play more.
<br />I saw your posts on MS-Extra, thanks for chiming in here. Did you ever get it working to your liking?<br />I've had some really good experiences working directly with Ken on boost control stuff so I'm hoping it continues.

Braineack

iTrader: (62)

aidandj, it sounds like you don't even have an MSLabs built MS3?

Some of the MSLabs ECU info might just add confusion to you...

aidandj

iTrader: (5)

You are correct home built. But its quite similar. Connecting a flex fuel sensor to the ms3 daughter board. Whether its through the ms3x pin, or however rev has it wired its essentially the same process, just a minor setup difference.
<br />
<br />Rev can answer for his ECUs. I've tried to get some info from ms-extra for the ms3x's out there.

Braineack

iTrader: (62)

Putting the flex fuel sensor signal directly into FLEX through the expander card, without any modification, is much different that adding resistors directly onto the ms3 cpu daughterboard.

aidandj

iTrader: (5)

But the sensor setup, and software setup are the same. So some of that crosses over. I have been told to wire straight to the ms3x flex input. But the details on what that provides are sparse. If I understood right its a direct connection to the ecu pin.

Braineack

iTrader: (62)

FLEX goes directly from the Expander to JP2 pin-2 on the MS3 daughterboard.

IIRC there's already 10K resistor in series before the CPU and a 10K pull-up resistor to 5v both on the Ms3 daughterboard on the underside. I can confirm this today if you'd like.

patsmx5

iTrader: (16)

Well +1 for you doing this and posting how you did it and making it work. So I can copy it.

aidandj

iTrader: (5)

<br />
<br /><br />
<br />Confirmation would save me some time. Please do.

Braineack

iTrader: (62)

confirmed.

the FLEX input on JP2 goes through R14 on the bottom of the board before going to the CPU. This is a 10K resistor.

A 10K pull goes to VCC through R3 on the top of the board.

So all anyone with a MS3x needs to do is wiring the Flex sensor into the FLEX input -- MS3X-5.

If you don't have an expander board, but still want to do Flex fuel without lots of mods, just wire your input directly to pin 2 on the JP2 (expansion connector) header.

aidandj

iTrader: (5)

Which I believe is what Rev instructs to do. Don't take that as truth though.
<br />
<br />In the past a filter capacitor was discussed. But last I heard on MS-extra this wasn't needed. Not sure what changed.

Schuyler

iTrader: (1)

<p>Been busy and missed when you posted this, but it doesn't look like I missed much :P</p><p>&nbsp;</p><p>I'll be watching this like a hawk now though, as I plan on running almost this exact setup (GT500s, DW200 (because not race car), MS3X). I'm adding an aftermarket 1:1 FPR though because I have a '00, but I think that will be about the only difference between the two setups.</p>

aidandj

iTrader: (5)

Lol. I'm adding a fuel lab afpr and bumping to 60psi too.

Schuyler

iTrader: (1)

<p>Oh that's right, you bought Ben's.</p>

aidandj

iTrader: (5)

Bringing this back up. I am ordering up all the final parts for my fuel system. And am missing 2 things.

I want some really good e85 resistant rubber line. (LAPS?)

And if possible a replacement stock filter. I've read that e85 can be harsh on paper filters, and my 190k OEM filter probably isnt in the best condition.

Lincoln Logs

iTrader: (1)

I've been using the bio fuel approved fuel injection line for 3 years running E85 without problems. Just make sure you get the line approved for the higher pressures of a fuel injected car, not the cheap stuff that is only meant for carbs.

Same with the filter, just get the Mazda or Autozone replacement and swap it out after a few tanks of E85.

aidandj

iTrader: (5)

Thanks. Eventually I will be AN6 pump to rail, but for now I'm leaving the stock hardline, and the 2 hoses that connect to it.

Lincoln Logs

iTrader: (1)

I've been running those hard lines for a while with 240WHP on E85...there is not an imminent need to replace them.

aidandj

iTrader: (5)

Yeah, I know. Thats why I'm not doing it yet.

Schuyler

iTrader: (1)

I'm running this stuff from the AFPR -> Evap hard line for my return.
Summit Racing® PTFE Hose SUM-220984 - Free Shipping on Orders Over $99 at Summit Racing

aidandj

iTrader: (5)

Are you just clamping it on?