Just wondering about the ECM on the new Harleys. When you change the tune in the ECM with either the Harley Street Tuner or an aftermarket tuner, does the ECM record the fact that the tune had been changed? In other words, if you later return the ECM to a factory tune, is there a digital footprint of the tune having been changed in the past?

Lon

 

I just spoke to Fuel Moto about this. as long as the calibration name is not changed the digital tech at dealer can not tell. forensic analysis at the moco could tell but very unlikely that would happen. Mike

 

I'm just guessing here. But based upon the BS crap that HD got into with the EPA, yes...IMHO it is reasonable to assume HD service can determine if there is anything other than a factory authorized map. Any 1st Year engineer could program that capability.

So...IMHO...we r screwed until the warranty runs out. As such, I just ordered Street Cannons for my new Road King. In 2 years I'll let loose.

 

Agreed, but no hard evidence to back that up. In my VW, I have a flashed tune. In the VW ECM it simply sets a flag for how many times (or even YES/NO) that the ECM has been flashed. It doesn't matter about the settings in the tables. Come in with a cratered turbo and show a flash flag and forget warranty. Work around is a piggy-back tuner that doesn't mess with the ECM (but does alter the signals going in). Don't know if such a beast even exists for the M8, but once you take that off there is no trace of you mucking about in the tables. The M8 is plenty good wit the basic SE stage one IMO. Agree with others to let the 2 year window close before going further. IMHO, of course.

 

true dat

 

If they want to know their is a flash counter and if the afr tables have a peak value memory stored.

 

Based upon my experience tuning with the Pro Street Tuner on my M8 the only record of previous tunes installed on the ECM would be on the hard drive of your computer that you used to download the tuning software on. There is a folder that records the tunes you have installed such as Stage I, Stage II etc. It would also show if you installed any "Smart tunes" which you would have named and saved. These records are made available from the computers hard drive if you ever want to revert to a previous tune or if you were going to do a new Smart Tune and you wanted to continue with the last tune which was installed in the ECM. Again, I do not think the ECM would keep a record of previous "Flashes". The only record would be on your computer's hard drive.

 

The ECM is capable of storing many things that would allow the Moco to know. There is only one way to stop it. You have to rewrite the entire memory (not the calibration) just as you would do when you reformat your PC.

If you want, you just need to purchase a separate ECM for your bike. Keep the stock one stock and play with the second one all you like.

 

I believe Mastertune is the only one that can do this ?

 

I would even go as far as saying that the bone stock M8 is incredible on its own. But damn, I have to admit, making the changes I have made, has rendered the perfect performance and sound for my liking.