F-series big turbo PWG N55 running flash only

mfractal

Specialist
Nov 10, 2017
80
27
0
Ride
E90 Sedan LCI 335i FBO MHD E40
well this log is of a turned off car.
I wanted you to start the ignition, start the log, then turn the engine on and leave it running for 30-40 seconds untill it goes out of open loop. preferrably a cold start.

And if you don't mind, after you get this one. turn the engine off,and then repeat the whole thing in another log.

Reason for that is that i am still chasing weird startup issues and long crank sometimes. I am zeroing in on the problem, i think. looks like it's related to rail pressure being too high. so i want to see how a working car is performing.

Is this what you are looking for? I started the car cold and recorded it. If it is I will do a start hot.
 

cmcacmca75

Lurker
Feb 19, 2020
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These are starts after I was driving. I'll have to do the cold again tomorrow morning, then I will do what you said and stop and repeat.
 

Attachments

  • 2020-03-06 17_36_26 00000FEF81A001 MHD_N55PWG_PS2_bv0.34.mhd.csv
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  • 2020-03-06 17_36_16 00000FEF81A001 MHD_N55PWG_PS2_bv0.34.mhd.csv
    11.7 KB · Views: 8
Last edited:

mfractal

Specialist
Nov 10, 2017
80
27
0
Ride
E90 Sedan LCI 335i FBO MHD E40
These are starts after I was driving. I'll have to do the cold again tomorrow morning, then I will do what you said and stop and repeat.
Any chance you can start the log BEFORE you crank the engine ?

- Enter the car
- Ignition on
- MHD manual log - start log
- start the engine
- wait 30 sec
- stop the car
- stop the log
- ignition off
- turn ignition on again
- mhd manual log - start log
- turn the car on again and wait 30 seconds

send me both logs :)
 

cmcacmca75

Lurker
Feb 19, 2020
12
1
0
Sorry, I got this after this morning's post by you. I did what you originally asked. Start engine start log. Outside temps around 35.

Cold, cold after restart, cold after driving and letting sit a bit.
 

Attachments

  • 2020-03-07 05_55_36 00000FEF81A001 MHD_N55PWG_PS2_bv0.34.mhd.csv
    192.2 KB · Views: 8
  • 2020-03-07 05_57_33 00000FEF81A001 MHD_N55PWG_PS2_bv0.34.mhd.csv
    113.8 KB · Views: 10
  • 2020-03-07 07_41_14 00000FEF81A001 MHD_N55PWG_PS2_bv0.34.mhd.csv
    95.7 KB · Views: 12
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