___ 
  |_  |
    | |
    | |
/\__/ /
\____/ 
       
       

_________
\__    _/
   )  (  
   |  |  
   |  |  
   |  |  
|\_)  )  
(____/   
         

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

 __     __
 \ \   / /
  \ \ / / 
   \ V /  
    \_/   
          

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

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:
'''Tach Signal on Mitsubishi''' The stock RPM meter has one wire towards ECU. I tried to tap it to one of injector channels, and added it to all h[0] masks. The gauge was working properly but there are two difficulites: * Right now I use all injector channels, so I don't have free inj channels anymore * No tach signal at deacceleration (decel fuel cut), so gauge shows 0 rpm at decel So I need a better solution. Of course I can solve it in many ways, but looking for a really nice solution... ---- '''Configurable tach output was made for this''' You can simply connect a free * injector output (or even the flybackless 2nd WBO2 heater output) * or p259 output * or stepper output * or ignition output without pullup to the RPM gauge. If RPM needle rests at 0.... A 270 .. 2k4 resistor pullup (to +12V) can be tried (assuming they forgot it from the RPM gauge input). Not much risks here (any output can take 12V through 270 Ohm or higher limiting resistor without damage). If RPM needle rests at 0.... '''If an RPM gauge originally got the input signal directly from the primary side of the ignition transformer, or you know the gauge needs high voltage to trigger''', the above will not be enough for RPM signal. In this case... Take a free ignition (not logiclevel, but IGBT) output (on Roland's ALS BMW 1.6 turbo we used EC36pin10, that is i259 channel 7 as seen on GenBoard/Manual/DigitalOut/Table), configure tach_channel and used an "inductive pullup" to 12V made from a [http://shop.vems.hu/catalog/product_info.php?cPath=1_15&products_id=102 22 Ohm and 220uH] connected in series.
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.