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      11-05-2024, 10:46 AM   #1
lowzero
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engine knock issue

hey guys!recently i flashed bm3 for my 535gt.i found that theres some knock in my engine.following month i cleaned the Carbon deposits in cylinders,and replaced the spark plugs with original parts.but it seem useless,there is still knock in the datelog. how can i fix it???

here are 2 logs
https://www.bootmod3.net/log?id=671f...32f364f8fdab87
https://www.bootmod3.net/log?id=672a...a92c3aa60407fd

=================

full exhaust,kn high flow rate filter and upgrade intercooler are equipped

Last edited by lowzero; 11-05-2024 at 10:53 AM..
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      11-06-2024, 10:52 PM   #2
Tejas1836
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Remove the flash???
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      11-08-2024, 04:35 AM   #3
lowzero
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Quote:
Originally Posted by Tejas1836 View Post
Remove the flash???
not working still knock in stock tune
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      11-08-2024, 05:05 AM   #4
John H.
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Possible mechanical issue/s. I would advise to have it inspected by a technician. Any codes?
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      11-13-2024, 10:46 PM   #5
lowzero
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Quote:
Originally Posted by John H. View Post
Possible mechanical issue/s. I would advise to have it inspected by a technician. Any codes?
inspect which part?no code exists.
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      11-14-2024, 08:26 PM   #6
Dasky_spas
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Try different fuel station/brand if you fill up at the same station. Start with the easiest variables first.
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      11-16-2024, 09:21 PM   #7
BimmerWu
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冷车启动,开了8公里左右吧,进气温度来到了 60 度
水温油温其实是低的,不到原厂开格栅的条件
水温油温低,进气格栅不开(保温节能),高流量空滤疯狂吸机舱内的热空气,此时再走高增压低点火角的程序, 就容易爆震
我猜此时如果是原厂空滤,反而进气温度可以低一点,因为没有那么顺畅,有一个热交换
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      11-17-2024, 10:47 AM   #8
BimmerWu
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另外可以切回原厂程序看看,对比一下
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      11-21-2024, 09:23 PM   #9
BimmerWu
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BM3 Tech Support has helped me fix it.

Active radiator flap now can keep open when engine on.

And keep close when engine off.
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