Problem found I think
I was running the Xieds from nightrider to richen it up.
It was fine but had some decell popping and with my new K+N high flow intake I went to a tuner.
The Xieds are supposed to be able to handle the intake and pipes.
$99.00 at nightrider.
cheap upgrade.
I'm saving my Xieds for the that time the tuner fails then it's plug and play till I get back with the tuner.
The ECU will use O2 sensor data to bring the bike back into spec for closed loop (cruising), so not a durability issue, although the bike may not run as good as it could.
For open loop (WOT and throttle response), the ECU will add the fuel corrections it learned from closed loop to the baseline MAP. So it will also correct open loop AFR. But the baseline map is based on the flow characteristics of a restricted system and flow rates/efficiency is not a linear relationship. The ECU corrections will probably fall short for open air filter free flow exhausts.
So if you don’t run the bike hard, there is no issue. Running the bike hard will eat into the built in safety margin. You can do it for short periods of time without issue, but I’d take it easy, and use quality fuel.
XiEDs will shift the AFR/MAP richer across the board so it will help and will give you more open loop margin. Help enough? Probably not.
So, if you are happy with the way it runs, just ride it. It won't run as good as when you have a properly set up tuner/fueler, but won't hurt nuttin.
Last edited by ColdCase; Dec 7, 2011 at 07:58 AM.







