MHD LOGS - Post them here

[enzed4]

I've installed MHD flasher and the logging module. I'm not really sure what I should be aiming for as far as 'good' logs go so I thought it might be time to start a new thread for those with logfiles to upload for comment/advice etc.
I'll start with a couple of logs taken tonight. 3rd gear from around 2Krpm up to around 6.5K (trying to follow the MHD recommendation). After I'd finished I realised I didn't have DSC fully off (and the car was in Sport mode). Not sure what effect (if any) that had on the logs, but it's a starting point. I wanted to start logging before I add the new FMIC hopefully this weekend.
Both logs are with a Stage0 map to give me a baseline as I go to the Stage 1 and 1+ maps. Will probably hold off any Stage 2 maps unless I get DP's.

https://datazap.me/u/enzed4/stage0-pre-fmic?log=0&data=3-22&trim=13&tmin=3.00&tmax=3.00

https://datazap.me/u/enzed4/stage0-...-22&solo=3&trim=13&tmin=3.00&tmax=3.00&hg=3-4

Let me know if there's a better way to present/share these logs.
Thanks.

 

[R.E92]

You have a lot of timing corrections for a stock map. What octane rating is the fuel and how old are the spark plugs?

 

[Gabz]

As per other thread, my Stage 2+ logs.

https://datazap.me/u/ctgabz/9stg2?log=0&data=3-23
and
https://datazap.me/u/ctgabz/9stg2b?log=0&data=3-23

Also reviewed / approved by R.E92, MHD and Wedge Performance which is reassuring!

 

[enzed4]

You have a lot of timing corrections for a stock map. What octane rating is the fuel and how old are the spark plugs?

I noticed a lot of corrections (all about -3). The sparks are only a few months old. Is it possible they may be wet from the intake clean last weekend? I think I have some logs pre-clean I can look at and see if the corrections were there then as well.
Octane is 95. We only have 91, 95 and 100 octane available where I am.

 

[R.E92]

You have a lot of timing corrections for a stock map. What octane rating is the fuel and how old are the spark plugs?

I noticed a lot of corrections (all about -3). The sparks are only a few months old. Is it possible they may be wet from the intake clean last weekend? I think I have some logs pre-clean I can look at and see if the corrections were there then as well.
Octane is 95. We only have 91, 95 and 100 octane available where I am.

Are they OEM plugs or NGK equivalent?

You could try resetting all ignition related adaptions (octane rating, knock regulation, intake mass flow) and doing another log.

 

[enzed4]

You have a lot of timing corrections for a stock map. What octane rating is the fuel and how old are the spark plugs?

I noticed a lot of corrections (all about -3). The sparks are only a few months old. Is it possible they may be wet from the intake clean last weekend? I think I have some logs pre-clean I can look at and see if the corrections were there then as well.
Octane is 95. We only have 91, 95 and 100 octane available where I am.

Are they OEM plugs or NGK equivalent?

You could try resetting all ignition related adaptions (octane rating, knock regulation, intake mass flow) and doing another log.

Don't actually know what plugs - the garage changed them when they did the rocker cover replacement. I'd have to dig up the invoice and see if they itemised the plugs. I just know they seemed very expensive compared to what I can find online (i.e they charged $300/150GBP fitted)

 

[enzed4]

New log: After fitting FMIC, reset adaptations (everything except Lambda and idle). Stage 1 tune, DSC off, Normal mode: still too many timing corrections .
I bought a spark plug spanner (12pt 14mm) but the damn thing is too short for the plugs, so back to the shop on monday. I removed the coil packs and looked inside the tubes - there is a small amount of oil in the bottom of a few of them, but I'm wondering if that's leftover from when the rocker cover was leaking oil - I don't know if the garage cleaned them after replacing the plugs. I won't know until I can pull them.

https://datazap.me/u/enzed4/stage1-fmic-post-adaptations2?log=0&data=3-22

 

[R.E92]

Shouldn't be any oil in the coils, you could clean them out with cotton buds and some rags.

If the plugs aren't the three point OEM variety then they need to be correctly gapped. To be honest if the timing corrections don't clean up after getting the oil off the coils then you are best to just put new plugs in yourself, only takes 20min.

 

[enzed4]

Shouldn't be any oil in the coils, you could clean them out with cotton buds and some rags.

If the plugs aren't the three point OEM variety then they need to be correctly gapped. To be honest if the timing corrections don't clean up after getting the oil off the coils then you are best to just put new plugs in yourself, only takes 20min.

Got the correct plug socket today and pulled all 6 plugs. All of them had some oil on the threads (some more than others), but all the tips were clean and dry and looked like they should for less than 12 months old. They are the Bosch three point OEMs.
I cleaned them up and put them back in at 23nm. The coil packs seemed ok; a couple had what felt like some old sticky residue which I'm assuming was from when the rocker cover was cracked/leaking. None of them looked like they had any contamination inside the tube that sits over the plugs.
Haven't had a chance to drive it since putting it back together tonight.

 

[enzed4]

Been a while, but I've managed to grab another couple of logs after cleaning the plugs. Cylinder timing corrections are still all over the place. Not sure where to go from here?
I loaded the MHD V9.0 Beta Stage 1+ for the runs, but have switched back to V8.0 Stage 1+

https://datazap.me/u/enzed4/stage-1-fmic?log=0&data=3-22

 

[sunnydays]

Been a while, but I've managed to grab another couple of logs after cleaning the plugs. Cylinder timing corrections are still all over the place. Not sure where to go from here?
I loaded the MHD V9.0 Beta Stage 1+ for the runs, but have switched back to V8.0 Stage 1+

https://datazap.me/u/enzed4/stage-1-fmic?log=0&data=3-22

datazapme_stage1plus_postplugclean01.JPG

Have you considered putting new plugs in?

 

[R.E92]

Something quite serious there. Those are sizeable corrections. I wouldn't push the car until you have it sorted.

Your injectors looks healthy and the fuel system looks OK. Since the problem spans across both banks I doubt it's a problem with the knock sensors.

It's either a problem with the plugs or your fuel is bad.

 

[Beeacon]

I'm only a novice with this stuff, but might this be your spark plugs igniting too soon? Would spark plugs one step cooler be sensible?

NB: I am in no way qualified, just did a little research when looking up intercoolers and stage 2 maps.
https://www.bimmerworld.com/About-Us/BMW-N54-N55-Spark-Plugs/

 

[R.E92]

One step cooler plugs are common on tuned cars but he shouldn't get corrections like that at stage 1+ power levels.

I use the NGK 5992 plugs which are one step cooler. Certainly worth buying those if you are going to replace the OE ones.

 

[enzed4]

Been a while, but I've managed to grab another couple of logs after cleaning the plugs. Cylinder timing corrections are still all over the place. Not sure where to go from here?
I loaded the MHD V9.0 Beta Stage 1+ for the runs, but have switched back to V8.0 Stage 1+

https://datazap.me/u/enzed4/stage-1-fmic?log=0&data=3-22

datazapme_stage1plus_postplugclean01.JPG

Have you considered putting new plugs in?

Something quite serious there. Those are sizeable corrections. I wouldn't push the car until you have it sorted.

Your injectors looks healthy and the fuel system looks OK. Since the problem spans across both banks I doubt it's a problem with the knock sensors.

It's either a problem with the plugs or your fuel is bad.

The plugs are less than, or just on 12 months old and would have done less than 1,000km. I can't see they're the problem, but I could try replacing them if I have to. They are the Bosch GR6STE2 3-prong type (OEM I believe?) .
What could be bad about the fuel? I fill it with 95OCT from a self-serve pump. I've not heard of any problems from this supplier - how could you tell if it's bad?
I'll map it back to Stage0 for now as well.
Thanks for the suggestions/help.

 

[enuff_zed]

Can you get a tank of the 100 and try again?

 

[enzed4]

Can you get a tank of the 100 and try again?

Should be no problem, the self-serve station has 100 and I'm down to about 1/3 tank of 95 at the moment. A bit of driving aimlessly tonight should get it down some more to give it room to fill with 100. I'll update the thread with results.

 

[R.E92]

There's no obvious cause of the corrections. My first reaction, after getting a fresh tank of fuel from a different station, would be to try different plugs, it's possible that whoever installed the current set used plugs that have been bashed around in transit.

 

[enzed4]

Today's Update:
I managed 2 runs today, one with DSC off (as recommended) and one with DSC on. Full tank of 100 octane. Had a close call on Saturday while out for a 3 hr round trip, met a tourist coming around the corner on a hill on the wrong side of the road towards me. Managed to avoid each other and the Zed lived another day....
Anyway, first run. Timing corrections at the start of the run, then they all smoothed out to zero.

https://datazap.me/u/enzed4/stage0-100oct-dsc?log=0&data=3-22

Second run. Zero timing corrections throughout.

https://datazap.me/u/enzed4/stage0-100oct-dsc?log=0&data=3-22

So, does my Z4 not like 95oct fuel? The 100oct was bought at the same site as I get the 95, so same brand, nothing radically different other than the higher octane.
I guess I'll need to do some more runs to see if it's consistent.

 

[R.E92]

Sometimes stations can have bad fuel. There's lots of reasons for it but the best way to eliminate would be to use a completely different station. A busy station is usually a good place to start as the fuel will be fresh.

Logs certainly look better though.