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Old 11-23-2012, 06:58 PM   #304
roger 04 rt
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Joined: Nov 2011
Location: Massachusetts
Oddometer: 2,107
John, The first picture is data that I've taken and plotted from my R1150. The second is what you said is the standard data read from the Motronic Chip.

I doesn't look like spark data because the advance numbers vs RPM and TPS in your table from the Motronic don't have the usual pattern. The plot I showed is typical for many vehicles. As I said earlier, the advance should increase with RPM and increase with TPS up to 48 degrees throttle and then be reduced. Maybe your SW is reading the wrong information. RB
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