i wonder why my stage 1 down load on my 2011 rgu shows richer then stock and richer then my tts mastertune? I asked Steve cole owner of tts why this was and he said that harley could make them as rich as they wanted as long as they were epa at idle. i have posted the stage 1 lambda map here before as proof and everyone refuses to believe it is from the sepst street legal down load but it is.

 

The stock ECM doesn't adjust to an air cleaner or exhaust...since the O2 sensor bias voltage remains unchanged while in closed loop.
When the 02 sensor bias voltage changes, the ECM attempts to adjust...hence the richer AFR. The 200 miles was from 2 sources; Jaime at Fuel Moto, and my personal experience.

Cheers...

 

My dealer was the one who told me the Stage 1 download by itself was a ripoff. It doesn't change AFR in closed-loop, i.e. idle and steady-state cruise, because it has to remain EPA compliant. So, the engine runs lean & hot, just like the stocker. While I don't doubt your experience (every engine/ECM can react differently to the same mod) it is rare that anyone says the Stage 1 d/l by itself cooled the engine, and I've never heard anyone say it made the engine run richer than the TTS. The forums are full of folks saying it did nothing and are looking for alternative methods to richen the AFR. I have to ask- if the Stage 1 richened your AFR as much as it did, why drop the coin for the TTS too? (Not trying to be nosy, just really curious...)

 

The Dealer's need to get their stories straight on the DL. I happen to know one of the best Service Manager's in this entire area. He says a lot of people don't understand the newer ECM's and what they are capable of. He said his mother's bike is running Stage 1 and a mild Cam with the Dealer DL. If you want his name and number, I'll provide it!!

 

Yes I put on little over 5 hours of riding time, train of thought is that any engine modification takes 2 - 4 hours for the ECM to learn - on a Harley.

Having the mountains to play in is a big help....

I belive that a ECM that has 16 bits or more can learn in 1 hour of real time riding..

My Motocross bike has a 24 bit ECM and takes 6 laps to adjust...

Like I said, these made the bike Loose Low end power, from a stand still to 20 MPH...and I adjusted them, made no difference...again no codes enegin RPM's were perfect etc...........

 

just got a really good deal and was curious more than anything.
here is the hd stage one arf/lambda map

 

lambda format

 

The ECM makes injector pulse output adjustments in milliseconds based on the inputs from the O2 sensors. The altered signal from the IEDs is no different from a routine signal outside the stoich range due to normal changing operational conditions, the outputs would compensate almost instantly. I'm not buying into the 200 miles to learn thing, if it takes that long to adjust to a signal out of tolerance, then the O2 system would be totally useless, and actual AFRs would never even be close to target.

 

Been there, done that. Curiosity has cost me a buck or two over the years, but it makes life interesting, LOL...

 

Found my problem, Xied's working fine again......