Next Level Auto Brokers
BMW Garage BMW Meets Register Today's Posts

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > Engine / Drivetrain / Exhaust / Bolt-ons / Tuning

Post Reply
 
Thread Tools Search this Thread
      04-30-2024, 11:01 AM   #1
LRGM3
Private
14
Rep
83
Posts

Drives: 2011 225i
Join Date: Jul 2014
Location: Vancouver

iTrader: (1)

Cranks but won't fire - Video inside - Suggestions/Help Needed

Have a 2015 m3 - was doing a hard 2-3 gear pull, didn't make any weird noises just felt like it ran out of power, died and shutoff, went into neutral and I coasted to a stop.

Now, the car will only crank, and sputter a little bit but won't fire as you can see in the vid.

There were only a few codes on ISTA from when it happened, see screenshot. Googling these didn't come up with much.

I tried clearing all the codes, then cranking the car more, but no other codes came up. Also tried using ISTA to check terminal 15 and 30, and they seemed to show voltage OK.

ISTA confirmed that there is fuel pressure from the low pressure pump at the sensor. Do the high pressure pumps suddenly fail?

It does seem consistent with the engine timing being off so I am wondering about a spun hub ( I did have a CBC)

Car has a stage 1 BM3 tune.

Any suggestions on what to try next? Is there a way to check for spark on these cars? Any other way to check if it's a spun hub if there are no codes?

Thanks in advance!


Attached Images
 

Last edited by LRGM3; 04-30-2024 at 11:08 AM..
Appreciate 0
      04-30-2024, 06:45 PM   #2
Jeremy Billiel
Private
United_States
27
Rep
50
Posts

Drives: 2017 BMW M3
Join Date: Dec 2019
Location: Connecticut

iTrader: (0)

If the crank hub spun you would have all kinds of timing errors. I would do more research on the fuel system first
__________________
2017 M3 ZCP
Appreciate 0
      04-30-2024, 09:55 PM   #3
LRGM3
Private
14
Rep
83
Posts

Drives: 2011 225i
Join Date: Jul 2014
Location: Vancouver

iTrader: (1)

Thanks for the reply.

What are the common ways to investigate the fuel system? On ISTA when I did the pressure sensor test it showed 7-8 BAR of pressure which seemed ok. Any suggestions on that?
Appreciate 0
      05-04-2024, 03:24 PM   #4
jfritz27
Major
jfritz27's Avatar
1127
Rep
1,322
Posts

Drives: 2018 F80 CS
Join Date: Dec 2014
Location: New Jersey

iTrader: (0)

I'm by no means an expert on this stuff, but you've got a weird list of codes, including stuff related to cameras and the windscreen. Which kind of makes me think some kind of module blew, that also has something to do with your starting issue. Or a fuse maybe? It seems more electronic as opposed to a primary engine mechanical issue
Appreciate 0
Post Reply

Bookmarks


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 04:26 PM.




f80post
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