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

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

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

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

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

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:
My first project is my Citroen CX 25 Gti Turbo 2. It's a 4 cylinder, side cam 8 valve, 2500cc, 1:8.5 compression turbocharged, intercooled, wasted spark engine. MembersPage/EvertDuindam/CXFactorySetup Airflow and airtemp signals come from a mechanical airflow meter. There is a GM 16 038 77 MAP sensor, but the signal is only used by the electronic ignition, not by the injection. There is a watertemp sensor, no lambda or EGT. There is a knock sensor type E 001T - 90272. It looks to me like the ignition modules are logic level as the Revue Technique speaks of two circuits one at 1-1,2 Ohm and one at 3500-4000 Ohm. The RPM pickup is done from the flywheel which is a 72-1 setup with a BDP sensor (which I am now thinking must be a HALL (partnumber EA 20 165 653 with a claimed resistance of 50 Ohm according to the Revue Technique). * if it's HALL, you can measure output with DVM (ignition on). Push the car a bit in gear 5 and the output will switch between 0 and 5V as the teeth pass I would like to set up a VEMS for the vehicle in order to increase fuelling and accomodate anything I would like to do in the future. For now, my objective is about 250hp, which should be equivalent of about 1.2 bar boost. Now, the first thing I need to set up is a buy list. I'm thinking a pre-built VEMS, ('''do NOT need a 1 wire interface'''), a 4+4 ignition driver (just incase I'm wrong about the logic level), 400kpa onboard MAP sensor, LCD & PS2 for ease of use, knock and EGT sensing, screws * '''30V flyback''' since you have a resistor pack (and you'll finally use high impedance injectors like the 630cc/min at 3 bar) anyway * primary trigger=VR * secondary trigger=HALL Obviously I'd also want a WBO2 sensor, and some wiring, like the 36pin and 18 pin harnesses and plugs. As I have an air meter, I'm going to want to replace that, and will probably need a replacement air temp sensor. Are there any suggestions for that? See genboard/sensors under WebShop (MAT sensor; and Temperature sensor (NTC) - latter only for the experienced. The car doesn't have a stepper motor, in the factory setup cold enrichment is done through the standard injectors. * stepper motor (or in general idle air valve) adds AIR * injectors add fuel ---- '''Trigger''' - current state Please keep an updated version of the current state here. Organize thematically, not historically (or not only historically). I have made the following page to keep the information about the primary triggger. MembersPage/EvertDuindam/PrimaryTrigger ... MembersPage/EvertDuindam/ProjectPics MembersPage/EvertDuindam/IgnitionMatters MembersPage/EvertDuindam/RpmOutput MembersPage/EvertDuindam/CitroenSM MembersPage/EvertDuindam/CXGtiTupdateHistory ----
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.