M135i EWG Tuning Advice - JB4 + MHD BEF

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Blind Pugh
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Blind Pugh » Fri Jun 22, 2018 3:32 pm

Ash_Webb wrote:
Fri Jun 22, 2018 2:33 pm
Just plugged in the laptop again to check codes after the little hickup when i drove it earlier.

I now have code '119404 Rail pressure sensor, signal stuck'

Seen this before?
Not personally no. Quick search c/o of Google & I found this for you http://f80.bimmerpost.com/forums/showpo ... stcount=56
....."119404 Rail pressure sensor, signal permanently stuck". Some details from ISTA:
Quote:

Check lines and plug connections between the following components:
- DME.
- Rail pressure sensor.
My read of this is yr FF wire loom or just connections is/are the issue and suggest the following:-

- check FF harness connections at both ends oe where it connects into JB4 and onto HPF rail sensor - perhaps unplug and re-plug FF harness at HPF rail end;
- clear codes with JB4
- do some WOT pulls in map 2 or 5 to see dash error comes again
- if no all good - have fun;
- if not, unplug FF harness and put to back OEM and try WOT pulls on map 1 or map 4 to see if error msg re-appears on the dash or not. If OK then its likely to be FF harness
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Ash_Webb
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Fri Jun 22, 2018 5:09 pm

Ok, so i checked the FF connectors when leaving work, i cant see any corrosion on the connections and theyre definitely on properly.

I have cleared codes, i then got two codes '119001 Rail sensor short circuit +' and '13E201 Suspected VANOS fault'.

I have done some logs in Map4, Map2, and Map5.

I have noticed that FF / Wastegate adaption has shot up to 114, and average ignition up to 3.3.

From the logs in Map5 it seems that boost is consistently under target by a few psi.
Trims seem to be around 25 is this low?

Im not expert so would you mind taking a look at the logs to see what you think?

https://www.dropbox.com/sh/i4boe6aimvix ... Hhlka?dl=0

Thanks.

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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Fri Jun 22, 2018 5:29 pm

Have also just noticed that FF stays at 0 on all logs at all times, does this mean the JB4 is not reading FF values?

Ash_Webb
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Fri Jun 22, 2018 8:49 pm

I’ve looked again and am I right in thinking my WGDC is staying very low all the time?


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Blind Pugh
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Blind Pugh » Sat Jun 23, 2018 7:17 am

Ash

Links to JB4 forum parameters & bible - save to favourites as both are useful read.

http://www.n54tech.com/forums/showthread.php?t=21269

http://www.babybmw.net/forum/viewtopic. ... ilit=Bible

If PWM is low value that’s a good sign and av ign is trending up from low 2’s to mid 3’s then that’s a sign that octane levels in the fuel is declining.

FF /WG adaption - trending to zero in map 2 is ok but try resetting it default setting of 60

http://www.n54tech.com/forums/showthread.php?t=18588
109E11CF-ADD5-4E96-96C2-5E63EEBF94CD.jpeg
109E11CF-ADD5-4E96-96C2-5E63EEBF94CD.jpeg (90.8 KiB) Viewed 164 times
BP



BP
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Ash_Webb
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Sat Jun 23, 2018 8:29 am

Thanks for the response BP, I just thought that if boost is below target then WGDC would be higher?

On all of my logs i get no values for FF or fuel pressure low, could this point to an issue with my FF wiring?

Will try resetting FF/WG adaption to 60, have also been recommended to set all duty bias values to 50 and do some more logs.

Cheers.

Blind Pugh
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Blind Pugh » Sat Jun 23, 2018 11:57 am

Ash_Webb wrote:
Sat Jun 23, 2018 8:29 am
Thanks for the response BP, I just thought that if boost is below target then WGDC would be higher?

On all of my logs i get no values for FF or fuel pressure low, could this point to an issue with my FF wiring?

Will try resetting FF/WG adaption to 60, have also been recommended to set all duty bias values to 50 and do some more logs.

Cheers.
Ash

Your logic is correct - underboosting means WGDC value (boost solenoid %age closure) will increase.

Is LPFP reading low even when you disconnect FF wires ?

BP
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AW M2 DCT

Ash_Webb
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Sat Jun 23, 2018 12:57 pm

Blind Pugh wrote:
Sat Jun 23, 2018 11:57 am
Ash_Webb wrote:
Sat Jun 23, 2018 8:29 am
Thanks for the response BP, I just thought that if boost is below target then WGDC would be higher?

On all of my logs i get no values for FF or fuel pressure low, could this point to an issue with my FF wiring?

Will try resetting FF/WG adaption to 60, have also been recommended to set all duty bias values to 50 and do some more logs.

Cheers.
Ash

Your logic is correct - underboosting means WGDC value (boost solenoid %age closure) will increase.

Is LPFP reading low even when you disconnect FF wires ?

BP
Thought so, thats why i find it strange that WGDC is below 20 at all times.

Havent actually tried, ill disconnect the FF wires and do a log and see if i get LPFP readings and also see if boost is closer to target.

Cheers, Ash.

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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Sat Jun 23, 2018 7:03 pm

I have changed all duty bias to 50 as has been suggested on N54Tech, no more fault codes have appeared, WGDC seems more normal, I'm now actually getting FF values on the logs too.

Car feels like it pulls a harder than it did before and feels smoother as well.

Boost seems to hold much closer to target than it did before, but do you think the target seems a bit low considering my mods and settings?

Average ignition has gone up again, and also FF / Wastegate Adaption has shot back up to 125 after setting it back to default.

Also still getting no values for fuel pressure low.

Do you still think there could be issues with the FF wiring now that I'm actually getting FF values on the logs? I havent actually had a chance yet to remove the FF wires and see if i get LPFP readings as the car was too hot.

Logs attached, what do you think is the next step for further improvements?

https://www.dropbox.com/sh/o52s4i0ddtu4 ... vRafa?dl=0

Thanks, Ash :)

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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Blind Pugh » Sat Jun 23, 2018 8:06 pm

Ash

Which map feels better 2 or 5 ?

BP
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Ash_Webb
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Sat Jun 23, 2018 8:10 pm

Blind Pugh wrote:Ash

Which map feels better 2 or 5 ?

BP
BP,

Didn’t actually try map2 today just map5! Will give it a try tomorrow and see what happens.

Ash


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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Mon Jun 25, 2018 8:52 am

Blind Pugh wrote:
Sat Jun 23, 2018 8:06 pm
Ash

Which map feels better 2 or 5 ?

BP
BP,

Tried Map2 again this morning, all was well until i was WOT in about 5th gear i think, the car suddenly had a violent hiccup and power dropped out for a few seconds and drivetrain malfunction came on the screen. Then about 5 seconds later it cleared itself and the car was back to normal... didnt capture it on a log unfortunately!

Ash

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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Blind Pugh » Mon Jun 25, 2018 9:23 am

Ash_Webb wrote:
Mon Jun 25, 2018 8:52 am
BP,

Tried Map2 again this morning, all was well until i was WOT in about 5th gear i think, the car suddenly had a violent hiccup and power dropped out for a few seconds and drivetrain malfunction came on the screen. Then about 5 seconds later it cleared itself and the car was back to normal... didnt capture it on a log unfortunately!

Ash
Ash - is the above map 2 5K 'burp' - which reads like a throttle closure - with either

- JB4 FF wires hooked up or
- with stock FF plug re-instated to HPF rail ?

BP
Fettled M135i EB AT - gone but not forgotten !
AW M2 DCT

Ash_Webb
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Ash_Webb » Mon Jun 25, 2018 9:38 am

Blind Pugh wrote:
Mon Jun 25, 2018 9:23 am
Ash_Webb wrote:
Mon Jun 25, 2018 8:52 am
BP,

Tried Map2 again this morning, all was well until i was WOT in about 5th gear i think, the car suddenly had a violent hiccup and power dropped out for a few seconds and drivetrain malfunction came on the screen. Then about 5 seconds later it cleared itself and the car was back to normal... didnt capture it on a log unfortunately!

Ash
Ash - is the above map 2 5K 'burp' - which reads like a throttle closure - with either

- JB4 FF wires hooked up or
- with stock FF plug re-instated to HPF rail ?

BP
BP, this is with the JB4 FF wires hooked up

Ash

Blind Pugh
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Re: M135i EWG Tuning Advice - JB4 + MHD BEF

Post by Blind Pugh » Mon Jun 25, 2018 9:49 am

Ash_Webb wrote:
Mon Jun 25, 2018 9:38 am
BP, this is with the JB4 FF wires hooked up

Ash
OK - suggest map 2 WOT pull with FF wires off and stock FF connection re-instated - if all OK then its likely yr FF harness is either no good or retrofit of the wires into mating pins on large JB4 socket is the issue.
Fettled M135i EB AT - gone but not forgotten !
AW M2 DCT

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