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 > 3 Series & 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

Thread Tools Display Modes
Old 08-21-2012, 03:14 AM
Tor Erik Tor Erik is offline
Registered User
Location: Norway
Join Date: Aug 2012
Posts: 1
Mein Auto: E36 320 Touring
Bmw 320i stops when i plug in air mass sensor


I have some problems with my bmw after engine swap.
I have swapped from M52B20 to M52B25.

The engine works good without the air mass sensor plugged in, but stops when i try to plug it in.

I have tried to change all sensors over from the old engine, but nothing helps.

I have also tried with three different air mass sensors, so i think this is ok.

Now i use the old ecu from my B20 engine, on the B25.
But i also have a M52B25 ecu without ews.

When i use the b20 ecu the engine works good, but with the b25 ecu i only could get it up to 3000rpm before it starts to missfire.

I wondering if it could be a ground fault somewhere, but i`m not sure.

Is there someone here who could help me with some tip maybe?

Sorry about my bad English but i hope something of it would be understanding

Kindly regard Tor Erik
Reply With Quote

See More Related BMW Stories

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series & 4 Series > E36 (1991 - 1999)
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 On

Forum Jump

All times are GMT -7. The time now is 07:18 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001-2015 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms