MHD Stage 1 93OCT timing corrections

Dev8295 · 12-14-2023, 10:34 AM

Flashed my 2017 340i yesterday, I'm having timing corrections, I'm looking for some insight on how to address this. Also if I need to provide a different log with more data that is not an issue.

I read it can commonly be from gas not being up to the proper octane level, l've read it can be plugs and that's about it so far. My plugs are about 3k miles old NGK's, Dinan coils, no other changes to the OEM set up.

Should I try and run 91 tune? Are these timing corrections severe? There is also a "timing delta for knock adaptation" which was at -1.8.
Any help is greatly appreciated!

n55david · 12-15-2023, 06:57 AM

Run the 91 tune

XxThe_RemedyXx · 12-15-2023, 08:48 AM

Quote:

Originally Posted by n55david

Run the 91 tune

Yessir, this is exactly what I do. Car likes the 91 tune better than the 93.

G.Newt · 12-17-2023, 11:16 PM

Rare to see clean timing on 93 maps. Step down to 91 or run one of the ethanol maps and throw some E in there.

Skyhigh · 12-21-2023, 04:57 AM

Always post the full log as a link, not just a screenshot of it. Analysing a log means looking at the progression of different parameters at different RPMs. Not just a snapshot in a moment of time.

Based on your description - you should definitely not run that map with your current fuel. Step down to 91 map (with the same fuel) or add E to your fuel.

12-14-2023, 10:34 AM	#1
Dev8295 Registered 0 Rep 1 Posts Drives: BMW 340i xDrive Join Date: Dec 2023 Location: MA iTrader: (0)	MHD Stage 1 93OCT timing corrections Flashed my 2017 340i yesterday, I'm having timing corrections, I'm looking for some insight on how to address this. Also if I need to provide a different log with more data that is not an issue. I read it can commonly be from gas not being up to the proper octane level, l've read it can be plugs and that's about it so far. My plugs are about 3k miles old NGK's, Dinan coils, no other changes to the OEM set up. Should I try and run 91 tune? Are these timing corrections severe? There is also a "timing delta for knock adaptation" which was at -1.8. Any help is greatly appreciated! Attached Images
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12-15-2023, 06:57 AM	#2
n55david Check out my Youtube @n55david! 1296 Rep 3,533 Posts Drives: 2017 m240i, 2015 X3 x35i Join Date: Aug 2018 Location: Michigan USA iTrader: (0) Garage List 2017 m240i xDrive [0.00] 2015 X3 x35i [0.00] 2015 335i xdrive [0.00]	Run the 91 tune __________________ 2017 m240i xDrive 10.99@122.86mph bootmod3 stage 2+ ots 2015 335i xDrive 10.95@124.99mph w/bm3 - SOLD 2015 X3 x35i pwg 12.96 catless w/bm3 stage 2 93 ots IG: @n55david For pics and updates! Youtube: @ n55david For videos or Racing etc
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12-17-2023, 11:16 PM	#4
G.Newt Major 810 Rep 1,454 Posts Drives: CT4-V Blackwing 6MT Join Date: Feb 2017 Location: CO -> TX iTrader: (0)	Rare to see clean timing on 93 maps. Step down to 91 or run one of the ethanol maps and throw some E in there. __________________ 2022 CT4-V Blackwing 6-speed SOLD: 2016 340i xDrive 6-speed DAW v2.5 turbo E40 \| Dorch S2 \| VRSF DP \| MST intake \| AWE catback \| 335is clutch \| CSF heat exchanger \| RK Autowerks intake manifold \| Orange M Perf Brake Kit \| KW Street Comfort coilovers \| GTS taillights V2
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12-21-2023, 04:57 AM	#5
Skyhigh Brigadier General 1890 Rep 3,877 Posts Drives: BMW F36 Join Date: Apr 2018 Location: Europe iTrader: (0)	Always post the full log as a link, not just a screenshot of it. Analysing a log means looking at the progression of different parameters at different RPMs. Not just a snapshot in a moment of time. Based on your description - you should definitely not run that map with your current fuel. Step down to 91 map (with the same fuel) or add E to your fuel. __________________ "Large increases in cost with questionable increases in performance can be tolerated only in cars and women."
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