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Old 10-27-2012, 08:39 AM   #20
Beastly Adventurer
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Joined: Jan 2007
Location: Lake Tahoe
Oddometer: 2,210
Originally Posted by cat View Post
How does it work? The LOF switch, a switch in the ECU, set by TuneECU - or the KTM diagnostic tool - to switch the ECU to use this LOF ignition map, an alternative ignition map??
There is a wire under the front of the seat. Forgot the colors. Someone will chime in and tell you. Just unplug it. It's pretty common in FI ECU's these days. When the ECU comes on it looks for a ground. If the wire isn't grounded then it reverts back to a different map. The 990 map is just reduced ignition timing for Low Octane Fuel. As if you were going somewhere and only 86 octane was available.
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