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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Timing Corrections/ Knock adjustments?? Need Second Opinion.



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      04-08-2021, 11:53 AM   #1
gster109
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Timing Corrections/ Knock adjustments?? Need Second Opinion.

I have a handful of logs here i'd like to get your expertise on, the first batch of logs are the "cold start" logs which are purely a cold start, with bad plugs mind you.

I was mostly concerned about how all the knock-cyl portion fluctuates so much especially on the cold start batch of logs.. is that normal??

I have since changed the plugs on the car but have not logged it as of yet.


Any insight would be very much appreciated, thank you.


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      04-08-2021, 03:58 PM   #2
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You will see timing correction during regular driving and in between shifts. Do a proper log in 3rd or 4th gear with DTC fully off from 2K RPMS to redline and go from there.
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      04-10-2021, 02:05 PM   #3
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Quote:
Originally Posted by crazythedon View Post
You will see timing correction during regular driving and in between shifts. Do a proper log in 3rd or 4th gear with DTC fully off from 2K RPMS to redline and go from there.
Appreciate the input boss I will get on that.
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