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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.. Can I diagnose with 1 coil?



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      04-28-2016, 08:43 PM   #1
pysical
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Timing corrections.. Can I diagnose with 1 coil?

I am having a timing correction issue

http://datazap.me/u/pysical/cody-ngk...10-11-12-13-22

I just had injectors replaced, I put in new NGK plugs gapped at .021. And as of right now I just finished a walnut blast (this log is without the blast).

If the blast does not help it, what should I be doing next? 1 coil at a time?
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      04-28-2016, 09:30 PM   #2
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What map and octane are you running? Did the corrections get better or worse before or after the plug swap and walnut blast?
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      04-28-2016, 09:34 PM   #3
pysical
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I am on a custom tune. And the timing was same before plugs. Haven't logged after blast.
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      04-28-2016, 10:15 PM   #4
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Same here, at 60k walnut blast and new spark plugs and at 68k new OEM turbos. Installed jb4 and pulling timing especially on cyl#1. I was told poor fuel and that back end flash should help.
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      04-29-2016, 08:09 PM   #5
pysical
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Just in case anyone comes across this issue, I completed walnut blast and this is the results.

http://datazap.me/u/pysical/cody-v5-...10-11-12-13-22
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      04-30-2016, 11:58 AM   #6
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Quote:
Originally Posted by pysical View Post
Just in case anyone comes across this issue, I completed walnut blast and this is the results.

http://datazap.me/u/pysical/cody-v5-...10-11-12-13-22
Glad to hear it cleared up!
I've had good luck with just couple gallons of e85 to help the corrections.
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      04-30-2016, 03:03 PM   #7
pysical
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Quote:
Originally Posted by PNWN54 View Post
Glad to hear it cleared up!
I've had good luck with just couple gallons of e85 to help the corrections.
Yeah I was reading a thread with a guy having some issues as well. He ended up moving from 91 octane to 93 and then I think a few gallons of e85 or something and he had cleared them up. Only issue is finding E85 where I am located. I am moving in 6 months so maybe wherever I end up going has E85 there.
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