possible bad knock sensor ?
#1
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possible bad knock sensor ?
does it quite often, mainly after multiple pulls. after some time it sorts out
nothing strange in the rom in that area. any suggestions ?
nothing strange in the rom in that area. any suggestions ?
Last edited by stunt2; Jun 12, 2011 at 04:59 AM.
#5
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I have a similar knock problem
I turned off the "timing knockdown under 3000 and light acceleration"
but also, I'm fine tuning the timing on these areas where I get knock. Adding 1 by 1 degree and it's getting a lot better.
Also try to reset or reflash the ECU,
I noticed that everytime I got knock I was seeing negative timing (-1,-3, etc) so I'm trying to get rid off it
Hope it helps
I turned off the "timing knockdown under 3000 and light acceleration"
but also, I'm fine tuning the timing on these areas where I get knock. Adding 1 by 1 degree and it's getting a lot better.
Also try to reset or reflash the ECU,
I noticed that everytime I got knock I was seeing negative timing (-1,-3, etc) so I'm trying to get rid off it
Hope it helps
#6
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I noticed that everytime I got knock I was seeing negative timing (-1,-3, etc)
also disabled that bit but this wierd case still occurs
can it be something rom related ?
#7
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I think it is the learning of the ecu, because it was seeing knock, it retards 1 2 or 3 degrees (depends on the knock count).
So it could have 2 degrees in that cell, but since it was knocking before it retards to -1
do you have the same ignition map in high and low octane? I would do that to prevent from going back and forth on high and low maps
also I posted my ignition map on the fully timing maps thread, someone mention that I sould add more timing on the low load cell (100-160) in the rpm where knock is happening; because the jump from one cell to the other in those load where to big (too much difference)
Hope it helps
I'm trying to get rid of this knock also. It's getting better, but haven't had time to smooth the map a bit and see if it works
So it could have 2 degrees in that cell, but since it was knocking before it retards to -1
do you have the same ignition map in high and low octane? I would do that to prevent from going back and forth on high and low maps
also I posted my ignition map on the fully timing maps thread, someone mention that I sould add more timing on the low load cell (100-160) in the rpm where knock is happening; because the jump from one cell to the other in those load where to big (too much difference)
Hope it helps
I'm trying to get rid of this knock also. It's getting better, but haven't had time to smooth the map a bit and see if it works
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