Assuming the only thing you have done to you car is a Dynoflash or an ECU flash from Vishnu, would the dealership be able to tell when you take your car in for repairs/warrenty work?

 

03 04s no 05 + yes

 

why is it detectable in the 05?

 

i have an 04 so i am ok, i will be getting the flash, i have read lots of posts on the flash, i think sometimes the dealer just guesses, and they make you tell them and then void you warranty, i read one where soemone went in for a basic oil change with a flash, and they said they found that the ECU was tampered with and they detected a flash, but i think if i remember correctly he was pretty heavily modded and they were looking for something to void his warranty so they wouldnt have to deal with him, not sure someone please correct me if i'm wrong, i would put the link up, but i read it over a month ago, not sure where it was

 

Well that sucks... I was kind of hoping that I could just do an ECU flash to an 06 and not have the stealership be the wiser.

 

Do u think mitsu is getting wiser as to checking things like that now? like hey if someone comes in with an EVO for say a basic oil change, and they have to check that stuff now? its getting to be that if you accidentally put 89 or 87 Octane in your warranty is voided, or if you fart in your car, and your Recaro's rip becasue of it, they won't cover it

 

I would say yes, but I have no basis's for that

 

I would expect that on all years, it would depend on how deep they wanted to dig. If they hook you up and check boost levels and timing, they can probably determine that something is way off. TYpically, service departments are so busy they're not going to want to spend a lot of time trying to do some detailed diagnostics just to see if you've tampered with the ECU. If you're concerned and have the financial resources, buy another ECU and keep the stock one original.

 

They can't tell at all on 03/04s. On 05s and up, they can tell if the programming has been changed based on checksums or something like that. They can't tell what has been done, just that something HAS been done, unless it's been flashed back to stock, I believe.

 

Honestly they really cant detect it bc they dont have the software for it. They really dont check for it. I have a friend that works at and he's friends with the techs and they DONT have the equipment to see if it has been flahsed

 

I think the point is that unless they have a real reason to look for it they aren't going to spend the time.

If you are trying to get them to pay for a new engine/tranny they will probably do a little digging before just putting it on their tab, but if your door locks stop working there is no reason for them to spend their time trying to find out if your flashed.

And if EVIL EVO is right most dealers don't even have the necessary equipment to check.

 

Someone tell me why they can't tell on the 03 and 04's as well...isn't it as simple as extracting the .BIN and comparing it to the one that came from the factory?

 

Yes it is that simple. Dealerships do have the tools but they 'shouldnt' have any reason to check. But if they do, yes it is very easy to compare the files and notice difference.

 

That's exactly why I wonder people are so adamant about saying, "well they can check the 05/06 but not the 03/04" as if the older ECU is somehow immune to a simple file compare.

Saying that the 05/06 has a "checksum" is a little ridiculous because a checksum can be computed externally to whatever data is physically written to the ECU. Mitsubishi can just as easily compute a checksum for an 03 or an 04 and check that against any car's ECU that comes in. Its not like there is something special on the 05 and 06 that makes this possible.

 

you cannot swap ecu's you have an ignition immobilizer box under the column ecu column and key all have to match