New Ytest
Sign out
Bimmerpost
Login
BMW E39 5-Series Forum | 5Post.com
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read  
Go Back   BMW E39 5-Series Forum | 5Post.com > BMW 5-Series (E39) Forums (1995 - 2003) > General E39 Discussions

Post Reply
 
Thread Tools Search this Thread
      10-13-2020, 03:44 PM   #1
Emiliglo
New Member
8
Rep
11
Posts

 
Drives: 2000 Mustang Gt
Join Date: Feb 2019
Location: East Bay Area, California

iTrader: (0)

E39 525iT pulsing / stuttering through revs when warm

Hey everyone just seeking a bit of help or advice with my E39 manual wagon, car has 169k miles. I've seen other people have issues with this on various forums but not a definite answer, or not exactly my situation. So the issue is, throughout the power band , when warm, it will stutter or pulse as it climbs revs. In the last week I have replaced:

Spark plugs
Coil packs
VCG
Fuel filter and fuel pump.

I only get this issue after about 10 or so minutes of driving, when cold or right after first start of the day the car feels amazing! Especially after all the parts I've replaced, but it just seems to switch over to running like shit after some time passes by. I have 2 codes being thrown right now, post cat o2 sensor and I have a evap code because there is a hole in my gas tank, none of those effect it as car was driving great before, also I work at BMW and even had my shop foreman plug in our scanner while driving and the computer was not picking up anything and basically was telling me I got a mechanically sound m54. My foreman recommended taking out my pre cat o2 sensors and see how it runs thinking the cat is clogged but wouldn't I have the issues all the time then? Not just warm? I am going to try this but if anybody else has any other ideas or experience will be greatly appreciated, I am just throwing parts at it (the dealer will do the same don't take anything this old to dealer to figure out for you half the guys don't know what's their doing anyway) and just want it to be back where it was. And issue only started about 2 weeks ago so was "fine" before then.
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 09:12 AM.




5post
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