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Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Posts: 5,916
Join Date: Apr 2014
Car: E92 335XI
Default 03-10-2019, 01:39 PM

Quote:
Originally Posted by keninger
In most logs cylinder one timing is a bit different from all the others.

I have new index 12 injectors
I have new NGK plugs gapped @ 0.022
I have swapped coils on cyl 1-2 to test, but still, ign 1 remains different from all the others

I have not done a walnut blast on the engine yet, it has 70k miles on it

What could cause different cylinder timing?
“Perfect” timing isn’t going to happen every log. In fact, small corrections occur even when stock.

What you don’t want is big drops / cylinder to cylinder variance

Based on your log, I think everything looks healthy.

What fuel are you using?



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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