##  ##  
  ####   
   ##    
  ####   
 ##  ##  
         

         
         
 ##  ##  
 ##  ##  
 ##  ##  
  #####  
    ##   
 ####    

  _   _ 
 | \ | |
 |  \| |
 | |\  |
 |_| \_|
        

   ##    
   ##    
 ######  
   ##    
   ##    
   ##    
    ###  
         

 _   _ 
| \ | |
|  \| |
| . ` |
| |\  |
\_| \_/
       
       

IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now.


Visit Preferences to set your user name
Summary of change:
'''BMW M52 engine.''' Black mot88 connector lock is slightly different from the natural color M50 (either type can be used with a bit of filing). The mot88 pinout is VERY different. So do NOT plug into the other type. See [http://vems.hu/download/v3/Motronic88/ M50-vanos-vs-s50b32.xls] columns. ---- '''Prelling''' We received a report of some relay prelling (when ignition off) that we cannot reproduce. * powering up p259 outputs through a small 30A relay (or 2 in parallel) to +12V without powering the ECU. ** this is assumed (and verified) to "flyback-ed to inj flyback equivalent to EC36/27" ** not to ECU power (equivalent to EC36/25) - that would explain if the solenoid is strong enough to provide ECU supply current. Verified that no diode to ECU power. What should be hooked to the mot88 (which pin) to simulate the "ignition off" state ? * In the car the main relay is feed by constant 12v from the battery, the ECU is powered via the Ignition switch 12V+ , so if the main relay is ON and the ECU is switched off via the switch it seems to stick on when protection diodes are connected to EC36/25. ** The flyback(pin 54) in the car also comes from the main relay but could possibly be moved to a constant 12V (pin26) instead to solve this? ** Can a failed diode in the relay cause this? OEM wiring information here http://www.gbnetwork.co.uk/bmw/ftp/etm_e36_1998final.zip Page 108 shows the way it´s wired.
Optional: Add document to category:
Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.