I'm looking to use the VEMS Motronic PnP on a 1991 Audi 200 20v turbo, the motor is a 3B
- Can the VEMS Motronic PnP be adapted to this engine (harness) ?
- Yes, developers actually have a 3B test engine (that is 20VT engine with 3B harness) for testing several stuff: MembersPage/MarcellGal/PowerAndTraction
Pic of ECU Connector:
3B Wiring Pinout:
http://www.s2central.net/motronic_pinout_3B.html
3B Wiring Schematic:
Audi 3B Information:
http://www.s2central.net/motronic_02.html
http://www.sjmautotechnik.com/trouble_shooting/20vboost.html
For 3B, specify choice for the extra SSC6 connector
MembersPage/TeppoKalske page bottom has the standards for SSC6 female pinout:
- either "3B ECU extra connector pins"
- or "AAN ECU extra connector pins"
Or "your custom pinout you like, eg. 4 outputs and 1 analog input" and 1 GND.
As you see, the "AAN ECU extra connector pins" has 3 analog inputs, we use one brake-light switch mounted under clutch (and a series switch that can disable it) to pull down (activate) the (shared) input for shiftcut and launch.
When activated with TPS < iac_tps_threshold launch is activated (TPS can be pressed after activation). Otherwise shiftcut is activated.
In any case, one must specify his extra-connector pinout preference for a 3B engine.
VEMS Motronic Audi 3B ECU Configuration
MAP connection 400kPa onboard - brass nipple
Best Flyback (Trans Diode) for "630 Pencil Injectors"
LCD - Connector through endplate (DSUB9 with flying loom)
PS2 - Flying Loom through endplate
EGT - Flying Loom through endplate
Knock - Via Motronic55 Pins
IAT - Audi PTC Sensor (430 Ohm pull-up)
Custom Pinout
IGNITION
Motronic55, Pin 1 is EC36 pin11 (Logic level )
Flyng Lead (No connector, I will supply)
- Stepper A, EC18 Pin 4
- Stepper B, EC18 Pin 10
- Stepper C, EC18 Pin 5
- Stepper D, EC18 Pin 11
- EC36 Pin 12 (Logic level)
WB02
Flying Lead (No connector, I will supply)
- Nernst,WBO2 Pin 1
- WBO2 Pin 3 (use a 5A fuse from +12V supply wire)
- Heater(-),WBO2 Pin 4
- Pump(-),WBO2 Pin 5
- Pump(+),WBO2 Pin 6
Launch Control / WOT Shift Cut
Flying Lead (No connector, I will supply)
- Analog Input for: "Brake-light switch mounted under clutch (and a series switch that can disable it) to pull down (activate) the (shared) input for Shift Cut and Launch.
- When activated with TPS < iac_tps_threshold launch is activated (TPS can be pressed after activation). Otherwise Shift Cut is activated."
Possible extra feature:
- Air Conditioning / Radiator Fan "Idle-Up" Input