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Uprev knock sensitivity

Anyone know how to reduce the knock sensitivity on UPrev,my knock reads off the scale, 26500, and pulls the timing from 20 Deg to 15 deg, see log file., or

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Old 11-27-2019, 03:17 PM   #1 (permalink)
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Default Uprev knock sensitivity

Anyone know how to reduce the knock sensitivity on UPrev,my knock reads off the scale, 26500, and pulls the timing from 20 Deg to 15 deg, see log file., or is there anyway to disable knock. I cant see that 20 deg is to high for this vehicle,even with octane booster, knock still occurs.

2009 370z manual N/A


https://datazap.me/u/amien/log-15748...11-12-13-14-15
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Old 11-27-2019, 05:31 PM   #2 (permalink)
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prob not a good idea to disable knock if it's not false knock. don't ignore the problem ; try to work with it and make it go away the proper way
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Old 11-28-2019, 03:08 AM   #3 (permalink)
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Any idea what would cause false knock,must be external,even octane booster vehicle still knock..could a std cat that has been hollowed out cause this ..causing back ground noise.
Anyone familiar with knock listening threshold on Uprev and the adjustment thereof..

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Old 12-16-2019, 11:04 PM   #4 (permalink)
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Quote:
Originally Posted by ZeeWorld View Post
Any idea what would cause false knock,must be external,even octane booster vehicle still knock..could a std cat that has been hollowed out cause this ..causing back ground noise.
Anyone familiar with knock listening threshold on Uprev and the adjustment thereof..

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Send me a PM I'll help you out with this when I have a moment. Each case is special and needs to be handled with care.
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Old 12-28-2019, 07:52 PM   #5 (permalink)
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If you have a lightweight flywheel it can cause the knock sensors to go off
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Old 01-07-2020, 05:04 AM   #6 (permalink)
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If you have a lightweight flywheel it can cause the knock sensors to go off
Spot ,just had to decrease sensitivity,all sorted thanks for the help.
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Old 01-07-2020, 03:22 PM   #7 (permalink)
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Glad to see you got this fixed. I had Jon at Z1 do the same thing for my Z a couple years ago when I had it. A bunch of false knock going on all the time, when all temps were nominal and with 110 octane fuel.
Now that I think about it, it probably was the lightweight flywheel.
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