Pinging?
Road Master
Joined: Feb 2016
Posts: 858
Likes: 140
From: USA
What is it at in the areas that you see timing being pulled? 95 or 103? 100 would be dead on. If it is at 95 the ECM is adjusting the the VE table to remove fuel in order to try and maintain the target AFR in your AFR table. So you would be a hit rich in those areas without the ECM adjustment. If it is at 103 the ECM is adjusting the VE table to add fuel in order to try and maintain the target AFR in your AFR table. So you would be a hit lean in those areas without the ECM adjustment. Look at the columns to the right in your spreadsheet. You can see the old VE value and then the new VE value.
I would pull a couple of degrees of timing from the spark tables (a little at a time) and once the pinging stops I would run a couple of auto tune sessions to clean up the VE tables for your spark table changes.
I would pull a couple of degrees of timing from the spark tables (a little at a time) and once the pinging stops I would run a couple of auto tune sessions to clean up the VE tables for your spark table changes.
Last edited by oleboy; Apr 11, 2016 at 09:18 PM.
Thread Starter
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Tourer
Joined: Jan 2016
Posts: 377
Likes: 63
From: South Carolina
What is it at in the areas that you see timing being pulled? 95 or 103? 100 would be dead on. If it is at 95 the ECM is adjusting the the VE table to remove fuel in order to try and maintain the target AFR in your AFR table. So you would be a hit rich in those areas without the ECM adjustment. If it is at 103 the ECM is adjusting the VE table to add fuel in order to try and maintain the target AFR in your AFR table. So you would be a hit lean in those areas without the ECM adjustment. Look at the columns to the right in your spreadsheet. You can see the old VE value and then the new VE value.
I would pull a couple of degrees of timing from the spark tables (a little at a time) and once the pinging stops I would run a couple of auto tune sessions to clean up the VE tables for your spark table changes.
I would pull a couple of degrees of timing from the spark tables (a little at a time) and once the pinging stops I would run a couple of auto tune sessions to clean up the VE tables for your spark table changes.
Road Master
Joined: Feb 2016
Posts: 858
Likes: 140
From: USA
I'm not really sure what to tell you. Normally I would just remove timing in the areas that are showing knock but your log looks odd. Look at the timing for the front and rear cylinders (far right columns). In both of my bikes I have more advance (small bit 2 - 3 degrees) in the front cylinder than I do in the rear. I guess because the front is supposed to run cooler than the rear. In your log its the exact opposite. You are only getting knock in the front cylinder and none in the rear although the timing is almost always 7-10 degrees more in the rear cylinder than what is in the front cylinder when the knock is detected. Maybe it is that you are too lean in those areas. In the areas where it is pulling 7 and 8 degrees of timing you are in the open loop, so the CLI is of no use to determine how close your VE tables are mapped.
Thread Starter
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Tourer
Joined: Jan 2016
Posts: 377
Likes: 63
From: South Carolina
I'm not really sure what to tell you. Normally I would just remove timing in the areas that are showing knock but your log looks odd. Look at the timing for the front and rear cylinders (far right columns). In both of my bikes I have more advance (small bit 2 - 3 degrees) in the front cylinder than I do in the rear. I guess because the front is supposed to run cooler than the rear. In your log its the exact opposite. You are only getting knock in the front cylinder and none in the rear although the timing is almost always 7-10 degrees more in the rear cylinder than what is in the front cylinder when the knock is detected. Maybe it is that you are too lean in those areas. In the areas where it is pulling 7 and 8 degrees of timing you are in the open loop, so the CLI is of no use to determine how close your VE tables are mapped.
Thread Starter
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Tourer
Joined: Jan 2016
Posts: 377
Likes: 63
From: South Carolina
Thanks for the pdf file. Looking at it like that. It starting to make sense. I pefer a carburetor myself. Efi has been a learning curve.
Cruiser
Joined: Feb 2015
Posts: 238
Likes: 0
From: Arizona
I have been following this thread with interest because I have a 2012 FLHRC that has started to ping/knock quite a bit in many ranges. I have a PV as well so hopefully I can resolve this, but my question is - how do you know where it is knocking by looking at the log?
Sorry - do not mean to hijack the thread - hopefully just adding to it.
Regards,
Sorry - do not mean to hijack the thread - hopefully just adding to it.
Regards,
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Thread Starter
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Tourer
Joined: Jan 2016
Posts: 377
Likes: 63
From: South Carolina
I have been following this thread with interest because I have a 2012 FLHRC that has started to ping/knock quite a bit in many ranges. I have a PV as well so hopefully I can resolve this, but my question is - how do you know where it is knocking by looking at the log?
Sorry - do not mean to hijack the thread - hopefully just adding to it.
Regards,
Sorry - do not mean to hijack the thread - hopefully just adding to it.
Regards,
Road Master
Joined: Feb 2016
Posts: 858
Likes: 140
From: USA
I have been following this thread with interest because I have a 2012 FLHRC that has started to ping/knock quite a bit in many ranges. I have a PV as well so hopefully I can resolve this, but my question is - how do you know where it is knocking by looking at the log?
Sorry - do not mean to hijack the thread - hopefully just adding to it.
Regards,
Sorry - do not mean to hijack the thread - hopefully just adding to it.
Regards,
Last edited by oleboy; Apr 15, 2016 at 01:41 AM.