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Old 07-24-2006, 03:27 AM   #1
WReXd
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Default Xede+ScanGauge?

I'm planning to get both an xede and a scangauge. (go to scangauge.com for info) Will the scangauge be able to display all info correctly with the xede? I'm afraid that the xede will mess up the scanguage's readings since it is a piggyback.
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Old 07-24-2006, 05:15 AM   #2
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Any signal that the xede tricks going to the ECU will read wrong on the scangauge.

TMS
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Old 07-24-2006, 06:28 AM   #3
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Quote:
Originally Posted by TheMadScientist
Any signal that the xede tricks going to the ECU will read wrong on the scangauge.

TMS
So which of these are going to be altered?


* Fuel Economy
* Fuel Rate
* Battery Voltage
* Coolant Temperature
* Intake Air Temperature
* Engine Speed (RPM)
* Vehicle speed (MPH)
* Manifold Pressure (not available on some vehicles)
* Engine Load
* Throttle Position
* Ignition Timing
* Open/Closed Loop
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Old 07-24-2006, 06:36 AM   #4
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Quote:
Originally Posted by WReXd
So which of these are going to be altered?


* Fuel Economy Maybe if Xede fools IDC
* Fuel Rate Same as above
* Manifold Pressure (not available on some vehicles) Most likely above fuel cut psi
* Engine Load If Xede fools the MAF for fuel control
* Ignition Timing Depends on wich ECU is in control
* Open/Closed Loop Don't know
I have never used an Xede. I am going on the info I know about the Utec. I know there are differences between how the two work. But I don't know exactly what they are.

TMS
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Old 07-24-2006, 12:54 PM   #5
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While I'm sure the Xede is a good product, especially since Shiv started it on the Impreza. It does not have a good following. Not a bad one, just not a lot of people use it. Infact, I've seen less then a handful of people post about it.

Why not try a reflash, or UTEC?
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Old 07-24-2006, 01:34 PM   #6
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reflash plus a scanmaster 3 FTW
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Old 07-24-2006, 02:32 PM   #7
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I was thinking of getting an ap, but I can get an xede for less than $300... so I would be getting em and the scanmaster for almost $100 less than JUST the ap. A reflash would work, but I think I would have the same problem with the utec since it is also a piggyback.
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Old 07-24-2006, 02:52 PM   #8
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you can use the free ap also. You just need an 80 dollar cable
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Old 07-24-2006, 03:09 PM   #9
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Quote:
Originally Posted by scoobdude
you can use the free ap also. You just need an 80 dollar cable
what?
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Old 07-24-2006, 04:22 PM   #10
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app. forgot the name of it, but many people are using it. openecu.org is a good starting point.
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Old 07-24-2006, 04:30 PM   #11
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Anyone know if the xede messes with idc?
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Old 07-24-2006, 05:06 PM   #12
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Quote:
Originally Posted by WReXd
I was thinking of getting an ap, but I can get an xede for less than $300... so I would be getting em and the scanmaster for almost $100 less than JUST the ap. A reflash would work, but I think I would have the same problem with the utec since it is also a piggyback.

You might be getting the Xede so cheap, mainly becuase it's lack of support in the industry. At this point, you are limited to I believe just Vishnu Tuning for any support. Do you really want to put your faith in just one company?

Being that you are in So Cal, I'd strongly recommend you get what can be supported locally.

1. That would be an Access Port (used goes for as low as $450), You can later get that Protuned to your car and mods.

2. Open Source Tune via an $80 cable and free software. Then just pay someone to tune your car

3. UTEC

4. Ecutek Tune. Either buy someone's flashed ECU, or get it done professionally for about $700.
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Old 07-24-2006, 05:25 PM   #13
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Quote:
Originally Posted by teiva-boy
You might be getting the Xede so cheap, mainly becuase it's lack of support in the industry. At this point, you are limited to I believe just Vishnu Tuning for any support. Do you really want to put your faith in just one company?

Being that you are in So Cal, I'd strongly recommend you get what can be supported locally.

1. That would be an Access Port (used goes for as low as $450), You can later get that Protuned to your car and mods.

2. Open Source Tune via an $80 cable and free software. Then just pay someone to tune your car

3. UTEC

4. Ecutek Tune. Either buy someone's flashed ECU, or get it done professionally for about $700.
I thought about this, but I am really only planning on running the xede's ots maps. I'm not super power hungry, and I think (correct me if I'm wrong) that they are safe enough to run for a long period of time. If ever I feel the need to upgrade my turbo, etc. there are ots maps for that, too. It seemed like a cheap and (afaik) safe alternative. Even if I got an ap, I'd probably only use its ots maps. If you find one $450, please tell me. I've never seen an ap go for lower than $500 for my year. Even if there was one selling for that low, I doubt it would take longer than 5 minutes to sell...
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Old 07-24-2006, 05:32 PM   #14
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OTS maps are not safe for ALL cars. Infact most cars will det on the Utec OTS maps and need to be tuned. Most of the time the maps are so rich that you will lose power.
Don't rely on the OTS maps for any length of time.

TMS
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Old 07-25-2006, 12:28 AM   #15
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Man you guy's are gunna laugh at me...

My wife and I have an 02 and an 03 and two xedes from the beginning.... Right now I'm running ST, and she's run the "subzero" map for a long time with great results. But it could do more, I think of it as the perfect nitrous controller. It really is kinda cool, the ultimate piggyback.

As far as obd read gauges, xede manipulates the ecu by lying to it. Any information through the obd port is a result of this manipulation, and is accurate as far as my sm-3 or generic obd-2 scanner reads, but not entirerly correct. Boost readings will be capped, tps will max out a lot, maf will be lower at the top end, but thank god, the timing wil be spot on.

I still think the xede rocks...

later, x
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Old 07-25-2006, 01:00 AM   #16
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Timing will be spot on? What's tps? Is fuel economy accurate at least? That's what I am most concerned about
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Old 07-25-2006, 02:11 AM   #17
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This is what dustin @ vishnu emailed me in response to my question:

"Shouldn’t be an issue. Remember, it alters the signal coming into the ecu (with exception of boost) which means that the ecu will still calculate all of the variables properly, as far as the scan tool is concerned."

Later he says,

"All of that data comes from calculations done internally to the ecu. None of those functions are altered."

So I'm assuming he's saying all the scangauge's readings will be still be dead on, even if the xede "alters the signal coming" into the ecu... right? Does this sound right?

Last edited by WReXd; 07-25-2006 at 02:34 AM.
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Old 07-26-2006, 02:35 PM   #18
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come on, guys!
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Old 07-26-2006, 02:38 PM   #19
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so here is what i see:

sensor -> exede -> ecu

so lets say your maf is seeing 200 g/s -> in the excede it changes this value to 230 g/s to richen up the mixture -> ecu sees 230 g/s

This is how piggybacks work. For what you want to do, i suggest you get a reflash
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Old 07-27-2006, 12:38 AM   #20
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Street Tuner with Wideband and SM3 FTMFW!!!

Quote:
Originally Posted by scoobdude
reflash plus a scanmaster 3 FTW
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