[SERIK]

Originally Posted by dmanb2b

people need to stop running .022 gap

My logs are horrible as well, pulls timing all across the band with 1 step colder gapped, 2 step colder gapped, upgraded coils and all. Why do you say .022 isnt good? Tuner suggests to gap it...fbo upgraded lpfp with meth injection on 93 pump. The only time i dont get much correction is when i add 2 gal of e85 but than hpfp struggles. Although recently i discovered that my hpfp crashes under wot even on pump gas so that might be a root of my corrections imo

[dmanb2b]

Originally Posted by SERIK

My logs are horrible as well, pulls timing all across the band with 1 step colder gapped, 2 step colder gapped, upgraded coils and all. Why do you say .022 isnt good? Tuner suggests to gap it...fbo upgraded lpfp with meth injection on 93 pump. The only time i dont get much correction is when i add 2 gal of e85 but than hpfp struggles. Although recently i discovered that my hpfp crashes under wot even on pump gas so that might be a root of my corrections imo

I am not too familiar with meth set-ups, but from what I have seen the .022 gap is just a carryover from earlier engine platforms. The b58 has a more stout ignition system. Seems like the cleanest logs are coming from people on the stock gap, even at 600+ whp

[brakthru]

Anybody figure out a way around the massive timing corrections. M240i AT running MHD stg 2 HPFP e40 map. Even increasing to e60+ doesn't correct it. DSC off and seems the DME still using safety nannies to apply power to the ground. Using M z40i/Supra plugs didn't help. Car became very responsive though. I was running stock gap. Went down to 20-22 than to 25 gap. Just reduced response but not corrections. I added an injen closed air intake 2-3 weeks ago which feels like more torque and power especially midrange. It seems the corrections got even worse after that. Sometimes easing into the throttle helps a little but that's no fun.

[bennyB58]

Originally Posted by ivanj308

Reaching out to the inter webs to see if anyone has any ideas. Been fighting timing corrections since switching to MHD and a catted downpipe.
Previously was running a Dinan Elite V1 tuning box.
I am working with a tuner as well as sent logs to MHD and no luck. Corrections occur with MHD OTS 91 and 93 octane tunes as well as with custom tune.
Stock tune appears fine to me

Vehicle is a 2017 BME M240i 6MT with 38000 miles

Things that have been addressed:
Fuel - 93 Octane fuel has been obtained from multiple gas stations. Shell V Power and Mobil. Most recently added 2 gallons of E85 to fuel still having timing corrections.

Plugs - I am on my 2nd set of NGK plugs in 3 weeks. Gapped to 0.022

Downpipe has been checked by two different independent BMW repair shops.

Knock Sensor - It has been suggested that possibly loose bolt or rattle causing knock however stock tune does not appear to have knock/timing issues.

As mentioned car had Dinan Elite v1 for 2 years. Is it possible it had long term effects on vehicle/sensors ?

Logs.
Current Log with Custom Tune and 93 Octane and 2 Gallons of E85

https://datazap.me/u/ivan308/steven-...28-55-56-57-58


Stock Tune 93 Octane
https://datazap.me/u/ivan308/stock-t...og=0&data=5-28


MHD Stage 2 93 with 93 Octane Gas
https://datazap.me/u/ivan308/mhd-sta...og=0&data=5-31

MHD Stage 2 91 with 93 Octane Gas
https://datazap.me/u/ivan308/log-158...og=0&data=5-28

Did anyone ever solve this. I'm dealing with the SAME issue right now
I'm on flex fuel tune and the SAME event is happening. Truly frustrating. Any help is appreciated!

[bennyB58]

Originally Posted by brakthru

Anybody figure out a way around the massive timing corrections. M240i AT running MHD stg 2 HPFP e40 map. Even increasing to e60+ doesn't correct it. DSC off and seems the DME still using safety nannies to apply power to the ground. Using M z40i/Supra plugs didn't help. Car became very responsive though. I was running stock gap. Went down to 20-22 than to 25 gap. Just reduced response but not corrections. I added an injen closed air intake 2-3 weeks ago which feels like more torque and power especially midrange. It seems the corrections got even worse after that. Sometimes easing into the throttle helps a little but that's no fun.

Did you figure out what the issue was??

[bennyB58]

Originally Posted by B58SP

Wow this is the EXACT same issue on the EXACT same car 17' M240i 6MT. Tried E30 and I know my plugs are 2 months old and the correct gap etc.

Did you figure out how to solve this??

[Bavarian MW]

It's not an issue that I've been able to see. It's that some cars are more finicky to changes in tuning when pulling cats. This is something that my custom tuner has been able to work out, I now have pure800 on my b58 and it runs strong with good timing. It's just that it takes my tuner a bit to dial mine in compared to some b58's, but Chris @ Motiv has always got me set and happy in the end. Tuning for port injection now! 😈 --MW

[vcx]

Did you figure out why load actual exceeds sometimes load target, causing some torque limiter intervention (and timing corrections), and how to avoid this issue?

[Honeybadger23]

Timing corrections are unavoidable when the tune is maxing out to get high power levels. Bootmod3 stage 2+ tunes have timing corrections as well. Can’t escape it. But I would go bm3 or do a relearn if it’s availabile on mhd. Best option is a custom tune to program out the timing corrections so it doesn’t cause you any issues.

[Honeybadger23]

I’d personally would switch to bootmod3. The of the shelf maps are almost flawless. Even on the stage2+ maps.

[Ethanbab]

Originally Posted by ivanj308

Reaching out to the inter webs to see if anyone has any ideas. Been fighting timing corrections since switching to MHD and a catted downpipe.
Previously was running a Dinan Elite V1 tuning box.
I am working with a tuner as well as sent logs to MHD and no luck. Corrections occur with MHD OTS 91 and 93 octane tunes as well as with custom tune.
Stock tune appears fine to me

Vehicle is a 2017 BME M240i 6MT with 38000 miles

Things that have been addressed:
Fuel - 93 Octane fuel has been obtained from multiple gas stations. Shell V Power and Mobil. Most recently added 2 gallons of E85 to fuel still having timing corrections.

Plugs - I am on my 2nd set of NGK plugs in 3 weeks. Gapped to 0.022

Downpipe has been checked by two different independent BMW repair shops.

Knock Sensor - It has been suggested that possibly loose bolt or rattle causing knock however stock tune does not appear to have knock/timing issues.

As mentioned car had Dinan Elite v1 for 2 years. Is it possible it had long term effects on vehicle/sensors ?

Logs.
Current Log with Custom Tune and 93 Octane and 2 Gallons of E85

https://datazap.me/u/ivan308/steven-...28-55-56-57-58


Stock Tune 93 Octane
https://datazap.me/u/ivan308/stock-t...og=0&data=5-28


MHD Stage 2 93 with 93 Octane Gas
https://datazap.me/u/ivan308/mhd-sta...og=0&data=5-31

MHD Stage 2 91 with 93 Octane Gas
https://datazap.me/u/ivan308/log-158...og=0&data=5-28

Did you ever figure out the problem and how to fix this? Currently dealing with this right now

[Ethanbab]

Originally Posted by Bavarian MW

Okay, WOW! My tuner and I have named my engine the b58dud, I am having the SAME EXACT issues as you in the EXACT SAME car and have been trying to figure it out for months.

I have 2 b58 cars and one gets great power with an OTS map and my 2017 M240i 6sp with 25K miles gets shit timing and on a safe custom tune makes no power. My story is SO close to yours, I couldn't believe I was reading it.

0) I use 93 octance from various top tier stations with no difference
1) bought car with 22K miles, went FBO with MHD OTS STG2 93 octane
2) sent logs to MHD because down on power with timing pulls and throttle closures, Mohit says it is due to fuel, try 91 map, same thing. Add 2 gallons of e85 makes it better but still shitty logs
2.3) switched MAF and coils from my other b58 cause easy, no difference
2.8) tried a tank of race fuel, no difference in logs
3) go through 3 sets of plugs, from oem to z4m40i to NGK 94201, some get misfires, some do not like close gap, i finally got 94201's gapped to .022ish and the car runs best, but still down on power
4) get a custom tune, to see if tuner can see anything hardware related in logs, The final revision of my tune (safe, with no timing pulls) is about 400 horsepower.... This car feels SLOW compared to my other OTS stg 2 b58 car.
I 100% believe that this is NOT the tuners fault, unless someone can give me a solid reason how it could be.

I have also thought about the knock sensor making the car think it has worse fuel than it does also. Now you mention it and it makes me want to rip off the intake manifold and try it.

I know for a fact my car was not tuned before I had it, I know the original owner. So I doubt your Dinan box did anything to make this happen.

I believe my car was not have been driven hard its first 3 years, and thinking that maybe a walnut blast could remedy the issues. Maybe it is not breathing like it should at high rpms with carbon buildup??

My plan for this car was to do Pure800 and HPFP, but I have been VERY hesitant with the issues I have been having. I may just do this anyway, and SEND IT. And pray for good power with safe logs...

I wonder how many people are getting shit logs and dont even realize it...

Here is an example of my OTS stg2 logs look like. This is qith 93 and 2 gallons of e85. https://datazap.me/u/bavarianmw/4-7-2020

I will update here if I figure anything out, and you please do it too. Wish me luck, and I wish you the same! --MW

I know this is 3 years later lol but did you ever figure out how to resolve this?

[silver81]

Hi I have the same issue on my M140i and I solved in this way:
- replace camshaft sensors with new one both side exhaust and intake;
- Delete adaptation, with MHD+ load adaptation, vanos adaptation, fuel advance adaptation, knock adaptation.
- leave 2 minute the car in idle condions
After try to drive the car in different speed and load
After try again to push full load
My car in another car, more torque and power

[Fast_Rabbi]

Replace the EKP module