Join Date: Jul 2007
Location: Harrisburg , PA, USA
Knock Knock, Sensor Who ?
Well after the questions brought up on the knock sensor i read both the FM and Clymer. I can not find a knock sensor anywhere.
Found that you set timing with the Hall-effect and the BMW scan tool. Now there are two HALL-effect and those are mechanical in nature. In other words you adjust them to spec while tightening them down using half shims and the BMW scan tool.
So then you move on to the Motronic. The only information there is what it monitors and it adjusts based on Air temp, Intake temp, Engine temp, and O2 readings, engine load, etc.
Now is the o2 a wide band?
If the Motronic is adjusting retard and advance is it doing it with voltage reference?
Is the Motronic just building a "base" map and then just running it?
I know on my Stage II Turbo we disconnect our battery to reset our ECU to combat this condition and make the ECU relearn. We also then must retrain our Slap Stick transmission too.
Is this Motronic similar in that?
I am just wondering how the Motronic is pulling timing in a knock situation? It has to be coming off the signal from the HALL-effect but since they are mechanical, what, and how does it accomplish this.
And can the Motronic be mind bumped when setting the HALL-effect if you wanted to run the bike with more advance?
Is the Motronic just using algorithms?
Anyone help me understand this a little better?
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