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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications Chasing timing corrections
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      01-30-2020, 03:45 PM   #1
burro_blasta
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Chasing timing corrections

I'm going thru tuning revisions now that my ps2 and fx150 are installed.

So far I got a 6* correction once but everything else has been <=3*. Seems like cyl2 and cyl6 show up more often but not consistently.

General question, at which point do you start chasing these corrections - ie, swapping coils, checking plugs, changing gaps?

Plugs are step colder at .022 (per tuner) and coils are OEM but with <5k miles. (I'll get Eldors when these new coils wear out.) Logs for the first couple revisions are below in case anyone is curious, but they're not too useful because it's still a work in progress.

https://datazap.me/u/ahetts/ps2fx150...og=0&data=3-14

https://datazap.me/u/ahetts/ps2fx150...og=0&data=3-18
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      01-30-2020, 03:59 PM   #2
mfractal
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What fuel is this ?

i'd say it's totally fine. corrections on one or two cylinders is normal. they aren't that high too

Edit i saw it's 91 octane. that might be the reason. Also, remembered now we're chatting over email too
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Last edited by mfractal; 01-30-2020 at 04:20 PM..
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      01-31-2020, 08:39 PM   #3
burro_blasta
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Quote:
Originally Posted by mfractal View Post
What fuel is this ?

i'd say it's totally fine. corrections on one or two cylinders is normal. they aren't that high too

Edit i saw it's 91 octane. that might be the reason. Also, remembered now we're chatting over email too
Haha yea, seeing how fast we can make 91 go before I mess with E.
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