I've been VERY happy with a certain vendors custom re-flashes. I've had two now (2nd after the Xede) due to not being happy with the Xede as a daily driven solution. I'm at the point in my life where it is important that my modified vehicle not "drive like a modified vehicle". I never could get the dreaded P0300 code problem solved with the Xede. However with a re-flash, I never had the code before the Xede, and I don't have the problem now with the fuel/timing maps zeroed out on another custom re-flash.

Now I'm hearing that people have had problems running SMART on top of custom flashes. That worries me as I am really interested in using SMART with my current flash. SMART/latest software updates have features to offer in and above active fueling/timing abilities. Problem is, that I want to keep the excellent drivability of the custom flash I have, but have SMART optimize it.

Shiv, is this possible? Can I use SMART with my flash? I'm to the understanding that you had enough problems on one car like this that you gave up and Xede/X flashed the car. That, I am not interested in. I'm sure the P0300 codes will come back as soon as SMART starts manipulating the timing... hence the code reader "fix" including in the SMART package.

As a customer, the "3 second wait" on every start up, and the need for the code reader push the envelope on my standards of acceptability as a customer. I'm also really concerned about emissions testing as you will not be able to get inspected with the reader in the OBD port. When you remove the reader, if the car throws a code while you are testing, well now what... However, the features you have been able to offer through the Xede are a phenomenal value to all of us Evo customers. This is not a rant, *****, or complaint. It is merely a concerned customer making sure he is not going to be disappointed with his purchase. All too often people make purchases and find that they didn't get what they thought they were. Then they go off on a negative rant not because the product doesn't do what it was designed to, but they were not properly educated as to the products capabilities. I was this customer with my original Xede purchase. However, recent updates add the capabilities I thought the Xede already had (shame on me for not looking at the product more thoroughly).

So what's the final word on the custom flashes?

 

I understand you have a custom flash and you like the driveability, but the XEDE adds great driveability with it being so smooth. I noticed it in my 03 (before the new smart firmware) and then when I put my XEDE in a buddys MR (new smart firmware) the car was like brand new and this is without SMART. This thing drove so well and smooth the owner thought it was a different car. Just my opinion, but get the XEDE and XEDEFlash and be done with it. I would think trying to mix two tunes together would just cause headaches. Again, just my .02. I think it is funny how so many people bicker about the c-reader and having to purchase the exact wideband that VISHNU uses.

 

I am interested in the questions zeus poses above. I am seriously considering xede as an alternative to flashing everytime you change something. I have a flash currently from another vendor (see sig) and hope the 2 are compatible. don't want to hassle with reflashing back to stock (although I can sell the flash). I am also intrigued with the information given above as to obdII compatibility. I live in an emissions state and have to have the test plugged into the obdII port once a year. how does xede/smart work with this? does the obdII port still work or do I have to unhook/limp over to the testing station, test, then hook up again?


sorry for more questions, and not trying to hijack, but I think that mine are similar to zeus's above and hoping that shiv/dustin can answer all at once....

 

crusin_lancer,

Tried that already and it ran like *** when my foot was out of it... to make things a little clearer, I'm running a White Rabbit with 272/272 cams and 680cc injectors. The car runs "like stock" with a little lope with the custom flash. With the Xede, I was getting P0300 codes left and right, and intermittent part throttle hesitation/bogging WITH the OE air box. With the custom flash and a Buschur filter on the OE MAF pipe... all I get is smoother drivability than stock, and all of the benefits of my modifications.

However, that is not what this thread is about!!

I think SMART is a remarkable achievement and want to run it with my flash. So I'm looking for input from the Vishnu crowd on this subject. I've had several of my customers ask me the same question. I've got little time for phone calls, and this would be valuable information for the customer base.

 

Do you have your Xede plugged into your car now?
Does the Xede 'cause misfire codes with a blank map over your current reflash?

I don't see why you couldn't run the Xede on top of ANY reflash... your base map (and quite possibly, your SMART adjustment values) would just be unique to your car. If your reflash is really good, you could probably just use a "blank" SMART map... that only makes "smart" adjustments to AFR and timing, as needed.

 

Sorry for the slight off topic, but, i have never thrown a p0300 before or after the xede. I wonder why some cars do, and some don't.

 

Yes it is plugged in, and except for boost, blank with no problems.


I'm hoping to run it as you say...

 

I'd like to know this also!

 

Do you only get misfire codes if the Xede is making timing adjustments?

If you're not sure, try putting a few "-0.5" values in the WOT area of your Xede's timing map to find out.

 

I know the older XEDE's were throwing codes left and right, hell I had one of the first revisions of the xede and I got P0300 all the time. Now that I had sent in my xede for upgrade and got v3 running I never popped a code. This xede has been in 3 different evo's as well.

EDIT: You also have to remember that there were stock Evo's throwing P0300 codes without a XEDE, whether if it is really a XEDE problem of a Mitsu problem the P0300 never seem to go away.

 

With every revision of the Xede firmware, the code for CAS replication gets better and better... that would explain what you're seeing.

 

I have smart on top of my dynoflash and it seems to be doing Ok. The car doesn't feel as consistant as it did before, but that's SMART making proactive changes (at least, I hope so ).

 

Zeus,

Your XEDE....(which used to be mine....... :-) ......... never threw a code in my car. So it seems that the code is not so much XEDE specific as it may be Xede/Evo specific...... Wondering also what the difference is. Just like why does a BOV cause one car to flutter and not another.

Quirky, to say the least.........

Tony

 

i never had P0300's before then i got a new turbo and a new tune using V3.0 and i started getting them. so i decided to change the plugs gapped around .024-.025 and no more P0300. even when it was coming on it would only happen every 100-150miles. i got mine inspected during just fine between CEL's.

 

Bump for Zeus.

I'm really curious about this as well. I don't see why the Xede wouldn't be able to adjust the parameters on any flash, but I think Zeus raises some valid questions. I'm particularly interested in the one about the OBD-II reader. I don't live in an emission testing state, but I'd still hate to have the port plugged just to cover up the P0300 code. Especially since I've never had that problem with my evo. Zeus, you mentioned "that people have had problems running SMART on top of custom flashes", could you be more specific? Feel free to PM me if you'd prefer.