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

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

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

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

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

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:
Subpage of MembersPage/BmwMFiftyTwo Please disconnect outputs initially (every output you can), and enable after * Ohm measurement * output test measurement ** regardless of any assumption (eg. this worked earlier, ...) We received a report that some outputs activated by p259 does not actually activate (including BMW52/73 DME relay and BMW52/69 fuel pump). * Known: '''the outputs certainly activated properly during tests, before sending the device'''. * the report did not have config, vemslog and measurement details, so cannot be verified, but it might suggest p259 got damaged somehow ** maybe something small (misconfiguration, "safe mode" or similar), but if some output is misdocumented or misunderstood, this might be the only way to know. * Note: '''Some outputs might be difficult to disconnect (hopefully it's not those that cause problem)'''. ** M52/pin9 (p259/2) fuel consumption output ** M52/pin20 (p259/4) CEL (check engine light) ---- '''another BMW M52 harness (for the bench)''' We received an M52 harness (and some sensors including the frequency output cam-HALL sensor), and did more tests this week. * we had a harness earlier, but it was not confirmed to have originated from M52 (now it seems quite likely the old was also from M52) * the new harness had DME relay so all DME relay tests could be done: ** high voltage flyback is best for DME relay output BMW52/73 , not just a diode to (EC36/23=) BMW52/87 = BMW52/54 ** because it is not desired to have the DME relay solenoid slightly leak voltage to injector +12V in unpowered state (although it does not effect normal operation). * FP relay was not included in the harness, but FP relay output activates even if loaded with 75Ohm resistor or 100 Ohm relay (given that DME relay is ALSO powered !) ---- Cylinder # to EC36 Pin numbers for Inj and Ign outputs? See the default uploaded config (even if acidentally changed, find on the local notebook drive, under VemsTune VEMS_files ... bkup dir). Also see [http://vems.hu/download/v3/Motronic88/ M50-vanos-vs-s50b32-vs-M60B40_B30.xls spreadsheet] Cyl 1 - InjX EC36/x - IgnX EC36/x Cyl 2 - ... ... Cyl 6 - ...
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.