M5POST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   M5POST - BMW M5 Forum > F10 M5 Forum > Mechanical Maintenance - Break-in, Oil, Fluids, Servicing, Etc.

Post Reply
 
Thread Tools Search this Thread
      01-31-2018, 04:22 PM   #1
V8munro
Private First Class
V8munro's Avatar
United Kingdom
49
Rep
139
Posts

Drives: F10 M5 Sakhir Orange
Join Date: Dec 2012
Location: essex

iTrader: (0)

intermittent timing issue (crank or cam sensor?)

car was misfiring today, as got warmer it gradually managed to hold idle and then after a while wouldnt cut out under revs, looked logs and car was idling and on partial throttle at 25degrees of timing then cutting to 0 on misfires. from my basic knowledge ive taken this as likely to be the crank or cam sensor playing up, even more annoying the car is now running fine and returned back to normal with car running fine. do these cars have any common issues with cam or crank sensor and where is the crank sensor located?
__________________
F10 M5 2013 Sakhir
Eventuri Intakes, Supersprint backboxes, catless downpipes, ssp spec r, ECU flash, JB4 BCM and BMS dual CM10 meth

Insta: Tommy_turb0
Appreciate 0
      01-31-2018, 05:06 PM   #2
V8munro
Private First Class
V8munro's Avatar
United Kingdom
49
Rep
139
Posts

Drives: F10 M5 Sakhir Orange
Join Date: Dec 2012
Location: essex

iTrader: (0)

FYI: Crank position sensor goes into the side of the bellhousing
__________________
F10 M5 2013 Sakhir
Eventuri Intakes, Supersprint backboxes, catless downpipes, ssp spec r, ECU flash, JB4 BCM and BMS dual CM10 meth

Insta: Tommy_turb0
Appreciate 0
      02-01-2018, 03:01 AM   #3
Fast400
Major
Fast400's Avatar
Germany
679
Rep
1,117
Posts

Drives: iX M60
Join Date: May 2014
Location: ...

iTrader: (0)

Garage List
2014 BMW  [0.00]
What you described is a bit vague. If you can perform a read from your OBD II, you can maybe see what codes your getting. The misfire could be coilpack, sparkplug, fuel pump, pressure regulator, bad fuel.....or intermittent cam/crank sensor. Kind of in that order more or less. There's even more things that can cause a misfire, but those are the most common.
Appreciate 0
      02-01-2018, 05:04 PM   #4
V8munro
Private First Class
V8munro's Avatar
United Kingdom
49
Rep
139
Posts

Drives: F10 M5 Sakhir Orange
Join Date: Dec 2012
Location: essex

iTrader: (0)

Fast i changed the crank sensor today and problem remained but car started driving better longer it was running. I was making alot of boost on meth and jb4 so i left meth on and turned extra boost additive off. With the big cm10 nozzles i think i may of thrown my adaptions out the window as afr, timing and fuel trims were all over the place. After putting 50miles on the car its now driving as should as afr, timing and fuel trims and back where they usually are. Not sure what happened but me messing it up is a high possibility with cm10 nozzles to keep afr in range at lower boost fuel is probably reduced alot. All new to me but its all back to normal.
__________________
F10 M5 2013 Sakhir
Eventuri Intakes, Supersprint backboxes, catless downpipes, ssp spec r, ECU flash, JB4 BCM and BMS dual CM10 meth

Insta: Tommy_turb0
Appreciate 0
      02-02-2018, 01:53 AM   #5
Fast400
Major
Fast400's Avatar
Germany
679
Rep
1,117
Posts

Drives: iX M60
Join Date: May 2014
Location: ...

iTrader: (0)

Garage List
2014 BMW  [0.00]
Glad you got it worked out!
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:17 AM.




m5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST