Ready to rip my hair out 🤬
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,862
Likes: 7,981
From: poway
Did you tug on each wire? If it stretches, it's broke.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,862
Likes: 7,981
From: poway
Did you tug on them good? Shaking don't do **** unless it's a dead chicken..
Road Warrior
Joined: Jul 2011
Posts: 1,936
Likes: 309
From: coastal sc
Well, I'd hate to say it but I suspect the issue is in the ECU. It might be a short to ground on the sense line but I suspect that when the coil went, it took out the sensing circuitry in the ECU.
The miss-fire sensing is done by circuitry inside the ECU. Here is a example as to how the sensing is done..
https://bmwmotorcycletech.info/ioniz...-susbystem.pdf
The reason as to why you don't see it when reving the bike is that the ECU needs to sense a load on the motor before performing ion sense through the map sensor. You could try to whack the throttle hard and it might occur. Simple blipping don't create enough load for the ECU to sense.
You could try new plugs but I suspect that they won't help. Since the condition always seems to appear on both cylinders, the only common connection between the 2 is the ion sense line going to the ECU.. I guess it could be shorted to ground somewhere... Check for that..
Maybe @Steve Cole would know as he's the delphi expert.
The miss-fire sensing is done by circuitry inside the ECU. Here is a example as to how the sensing is done..
https://bmwmotorcycletech.info/ioniz...-susbystem.pdf
The reason as to why you don't see it when reving the bike is that the ECU needs to sense a load on the motor before performing ion sense through the map sensor. You could try to whack the throttle hard and it might occur. Simple blipping don't create enough load for the ECU to sense.
You could try new plugs but I suspect that they won't help. Since the condition always seems to appear on both cylinders, the only common connection between the 2 is the ion sense line going to the ECU.. I guess it could be shorted to ground somewhere... Check for that..
Maybe @Steve Cole would know as he's the delphi expert.
Road Warrior
Joined: Jul 2011
Posts: 1,936
Likes: 309
From: coastal sc
eatabullet take the time to give more information. when did it start what actually happens and how often is it an 06 is it modded does it have an aftermarket fuel management system and so on.
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