E60 rough idle numerous codes
#1
New Members
Thread Starter
Join Date: Jul 2014
Location: connecticut
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
My Ride: 535xi
![Default](https://5series.net/forums/images/icons/icon1.gif)
I have 2008 533xi. here is the story: one day i couldn't start the car in cold weather. It was cranking 3 times and stops every time i tried. Checked battery- it was showing 11.5V. I took battery home and charged it. Next day installed battery and started the car- car started rough , was shaking and i got 2 cylinders misfires. Swapped coils and spark plugs- no difference- same cylinders misfires. Checked DME- had fried mosfet on cylinder 3. Bought MSD81 programmed and installed. Started the car- cylinder 3 misfire again. Replaced all spark plugs. Now i have no misfires, but car slow to accelerate and vibrating (much less than was before but still). Now i have code P2c77. At the moment it looks like everything i fix something else comes up. Should i go forward and replace HOS2 and hope it will fix loss of power and vibrating or i'm missing something else?
#4
Super Moderator
![](https://5series.net/forums/images/ranks/veteran_army.png)
Join Date: Jul 2011
Location: Augusta, GA
Posts: 3,628
Likes: 0
Received 318 Likes
on
305 Posts
My Ride: 05 530i M54
Model Year: 05 530i
Engine: 3.0 M54
![Default](https://5series.net/forums/images/icons/icon1.gif)
Originally Posted by cadillacby
i did voltmeter test on mosfets. One of them was fried.
Last edited by seanjordan20; 02-10-2022 at 11:31 PM.
Thread
Thread Starter
Forum
Replies
Last Post
BurtonSnol3order
E60 Discussion
12
02-05-2019 10:58 AM