M50B25 from e34 to e30 problem - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 07-19-2007, 02:57 AM   #1 (permalink)
n00b
 
Join Date: Jul 2007
Car: BMW E30 24v
Posts: 3
Photos:
Toninho is on a distinguished road
M50B25 from e34 to e30 problem

I came here in hope that you nice people might help me.

I've done a engine swap, M50B25 from E34 to E30.

I had 2 engines M50B25 to make 1 good engine.

Now, swap is done, but engine runs on 3 cylinders.

When i switch off Luftmassemeser (MAF) engine runs twitchy but when i rev it it runs on 6 cylinders.

I tried to put LMM, Lerluft ventil and ECU from friends car that runs OK,
but the same thing is happening.

Is it possible that one of the engines that i took the LMM and ECU have a Bosch, and this one in the car had Siemens electronic and wires layout?

Or you think it might be something else?

E30 that i build is for drifting.

Thank you,
Toninho is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-30-2007, 12:43 PM   #2 (permalink)
5th Gear Member
 
BMWJNKY's Avatar
 
Join Date: Oct 2003
Location: Elk Grove, CA
Car: '89 E30 w/M50
Posts: 1,175
Photos:
BMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond reputeBMWJNKY has a reputation beyond repute
Send a message via AIM to BMWJNKY Send a message via Yahoo to BMWJNKY
How did the engine run before it was pulled from the E34? Did you do a cylinder leak down test to make sure the engine was in good condition before it was installed into the E30?

If the engine ran well before it was pulled check the grounds for the coil packs. Make sure there is no dirt, oil or paint between the grounding surfaces. Also check the spark plugs and make sure they arn't platinum. Plat. plugs tend to foul out very easy on the older engines, I recomend using the factory Bosch plugs.
__________________
My M50 Powered E30 Page

BMWJNKY is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
e30, e28, and e34 Haynes Manual Download Cruzin 323is 5-Series (E12,E28, E34, E39, E60) 5 01-09-2011 11:39 PM
Desperately Need Your Help: BMW325i "Service Engine Soon" light problem CNMB250 3-Series (E46, E90) 4 12-19-2007 06:26 AM
M50B25 from e34 to e30 problem Toninho 5-Series (E12,E28, E34, E39, E60) 0 07-19-2007 02:57 AM
e30, e28, e34 Haynes Manual Download Cruzin 323is 3-Series (E21, E30) 2 04-10-2006 11:33 AM
E34 trans prog problem exacerbated electronblue 5-Series (E12,E28, E34, E39, E60) 5 03-02-2006 10:07 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 12:32 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.