2000 740il issues! help! - Bimmerfest - BMW Forums

Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series & 8 Series > 7 Series - E38 (1995 - 2001)

7 Series - E38 (1995 - 2001)

Thread Tools Display Modes
Old 09-25-2012, 08:09 PM
powerstroke3295 powerstroke3295 is offline
Registered User
Location: indiana
Join Date: Sep 2012
Posts: 1
Mein Auto: 2003 powerstroke diesel
2000 740il issues! help!

hello i am a master automotive technician. i have recently put a used engine in a 2000 740il 4.4. I have everything installed correctly. the problem i am having is it is throwing a 33 and 34 code which is for bank 1 and bank 2 vanos problems. the vehicle will start and idle pretty smooth but as soon as you try to give it gas you can hear the throttle body open but it will not accelerate. the engine gets very warm like it is running too lean. i cleaned the mass air flow and it seemed to help the issue for a little bit but now its back to no acceleration. i have not messed with these 4.4s much so any advice would be great! thanks zack.
Reply With Quote
Old 10-16-2012, 10:45 PM
Myronmhouse Myronmhouse is offline
Registered User
Location: United states
Join Date: Nov 2011
Posts: 10
Mein Auto: 2000 740il
could be a blocked Cat, try removing the 02s before the cats and see if it accelerates. The point being, give your exhaust somewhere to go if it can't get past the cats.
2000 BMW 740IL

Last edited by Myronmhouse; 10-16-2012 at 10:58 PM.
Reply With Quote

See More Related BMW Stories

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series & 8 Series > 7 Series - E38 (1995 - 2001)
Today's Posts Search
Thread Tools
Display Modes

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

Forum Jump

All times are GMT -7. The time now is 04:23 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001- VerticalScope Inc. All rights reserved.