MembersPage/SteinOvePrestmo/WiringPage (2006-03-16 04:43:08)
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Information on my wiring setup


Tachometer (RPM Rev Counter)

Original setup

Originally the rpm signal is feed from the coil (-) (Single coil distributor) to the fuse box where the signal is distributed to the fuel pump relay, multi function instrument (shift light for economic driving, fuel consumption calculations) and tachometer.

New setup:

I'm now using 4 COPS and need a new tachometer signal and rpm signal to the fuel pump relay.

A possible solution is to wire signal from each coil with separation diodes into the cars original wiring

Using 4 high-voltage diodes (such as ES2J or BY399 or even 1n4007) to make a tach signal compatible with the original sounds good.

A similar solution is described at the bottom of this page http://www.megasquirt.info/ms2/EDIS.htm

Questions from others:

Why don't you control the shift light and fuel pump relay directly from the ECM ? To keep it simple I prefer to use a well known solution at the moment (and it's simple to wire in one cable)


Pin-out

work in progress

VEMS Pin-Out Function Wiring Colour Car Pin-Out Comments
EC36-1 TPS signal ws/ge 0.35mm² Pin 5 TB  
EC36-2 Intake Air Temp sw/ro 0.35mm² PIN 1 IAT  
EC36-3 Fast Idle solenoid    
EC36-4 Coil #8    
EC36-5 Analog Ground - - Ground on the top of the cylinder head
EC36-6 Injector G    
EC36-7 Injector A    
EC36-8 Injector C    
EC36-9 Injector E    
EC36-10 Coil #7    
EC36-11 Coil #4    
EC36-12 Coil #5    
EC36-13 Secondary Trigger   Pin 1(+), Pin 2 (signal), Pin 3 (-) G40 Hall Cam shaft sensor
EC36-14 Coolant Temp   Pin 1 (Signal), Pin 2 (-) G61 Coolent sensor
EC36-15 Fuel Pump   Relay (29) Relay signal to pin 29
EC36-16 Coil #9    
EC36-17 Injector H    
EC36-18 Injector F    
EC36-19 Injector B   Pin 2 Injector Cyl 2
EC36-20 Injector D   Pin 2 Injector Cyl 4
EC36-21 Analog Ground - - Ground on the top of the cylinder head
EC36-22 Flyback Rail    
EC36-23 Flyback Rail    Solder Internal lead
EC36-24 Coil #6    
EC36-25 Vbatt (Switched with ignition - hot in start and on positions)    "Fuse box rail ""30"""
EC36-26 Signal Ground    Common signal ground for TPS, IAT, CLT,CAS...
EC36-27 Primary Trigger   Pin 1(??), Pin 2 (signal), Pin 3 (shield -) VR sensor G28
EC36-28 +5V (to sensors)    HALL and other trigger that need +5V
EC36-29 +5V (TPS voltage divider)    TPS +5V
EC36-30 Drive_11 (misc output)    
EC36-31 Drive_10 (misc output)    
EC36-32 Analog Ground - - Ground on the top of the cylinder head
EC36-33 Coil #1   Pin 1 (signal) Coil # 1 Cyl 2, Pin 15 (+), Pin 4a (-)
EC36-34 Coil #2   Pin 1 (signal) Coil # 2 Cyl 3, Pin 15 (+), Pin 4a (-)
EC36-35 Coil #0   Pin 1 (signal) Coil # 0 Cyl 1, Pin 15 (+), Pin 4a (-)
EC36-36 Coil #3   Pin 1 (signal) Coil # 3 Cyl 4, Pin 15 (+), Pin 4a (-)
     
     
EC18-1 WBo2 #2 Nernst Cell    
EC18-2 Exhaust backpressure    
EC18-3 Fuel pressure    
EC18-4 Stepper motor channel A    
EC18-5 Stepper motor channel C    
EC18-6 Drive_B (misc high current output)    No FET installed
EC18-7 WBo2 Pump -   (-) on WBO2 WBO2
EC18-8 WBo2 #2 Pump +    
EC18-9 WBo2 #1 Pump +   (+) on WBO2 WBO2
EC18-10 Stepper motor channel B    
EC18-11 Stepper motor channel D    
EC18-12 Drive_A (misc high current output)    No FET installed
EC18-13 WBo2 #1 Nernst Cell   PIN ??? WBO2
EC18-14 Free    
EC18-15 Free    
EC18-16 Dallas 1-wire bus    
EC18-17 WBo2 #2 Heater -    
EC18-18 WBo2 #1 Heater -   PIN ??? WBO2
     
Extra Pin-outs needed     
     
- EGT channel 1    Separat EGT lead
- LCD display    Separat LCD lead / Connector
- Keyboard    Separat Keyboard Connector
- MAP    Separat MAP hose connection
- Knock channel 1    
- Knock channel 2    

You may find:

http://www.vems.hu/wiki/index.php?page=MembersPage%2FPhatBob%2FUserGuide

Helpful


More info will come shortly