I'd like to know if I flash my ECU with Maximus or PCVX and then return it back to stock settings, will the dealers will be able to see that it has been custom flashed and flashed back to stock.
The question is due to the fact that my Vic is still under extended warranty and it'll be most likely void if they notice I've flashed the ECU.
'K... first off--ya can't flash the onboard ECU with the aftermarket fuel controllers ya mentioned. Those devices are piggy-backed onto the bike's fuel controlling ECU signal. The maps ya create and download to those fuel controllers modify engine operation beyond ECU response... hence ya either dyno or use Autotune to create maps for yer fuel controller not
ECU operatin' map.
You need the Dealer/Mechanick link to Polaris to download the flash using the barcode card that comes with the kit. After that the cable to connect to the bike's computer. If yer gonna flash yer bike's ECU ya need a tool the dealerships' authorized to use (and paid to use). The reason that PCV and Maximus are so popular is ya do fuel mapping without returning to the dealership, at yer leisure, producin' yer own desired results. The dealerships' tool to get into the ECU costs 'bout $3k-$6k and is licensed. While fuel controllers cost $300-$500. Places like Lloydz, which change the rev range on a bike, have invested in the tool years ago.
So, gettin' back to yer original question, if ya install a fuel controller on yer bike will the dealership notice it... fer sure, ya can't miss the extra hardware! Will the dealership see the change in ECU flash... most likely they've made the changes, documented them, so are aware of them. Will it void yer warranty... sorry don't know, but I waited a year to put my PCV on to be sure it didn't affect my warranty. I think, if the dealership installs yer fuel controller they'll tell ya up front that it'll affect yer warranty. If it does affect yer warranty, dependin' on the dealership, they may still endorse yer warranty 'cuz they did the work.
--'K, sorry after re-readin' yer post I may have misunderstood yer second question... if ya bought the bike with the fuel controller installed will the dealership be able to track yer map changes? The answer is: No. After a map's been altered there's no way to monitor changes unless the comments section of the two maps are different. For example: if the dealership uses the comments section to log dates, customer data, or other unique information to help keep track of what he's done when you change yer maps back 'n forth ya could inadvertently lose this information. So, even though ya might have returned the maps to their original state if info the dealership's used to seein' isn't there they'll know somethin's been messed with. Still don't know if that would void yer warranty.