MembersPage/KevinBlack/Audi (2008-12-05 04:37:07)

Car Information:


Questions:


- 1991 Audi 200 20vtq, 3B Engine

- Stock 3B injectors, 3.5 bar fuel pressure

- 5 individual 12V power coils

- Megatune 1.1.23 and or V3GUI for tuning


'ECU information'

- 1.1.27 Firmware

- Marcell config and tables for 3B


VEMS Motronic Audi 3B ECU Serial # 2016 Configuration

Requested:

MAP connection 400kPa onboard - brass nipple

Flyback - 30v Diode

LCD - Connector through endplate (DSUB9 on endplate or flying loom)

EGT - Flying Loom through endplate

Knock - Via Motronic55 Pins

IAT - Audi PTC Sensor (430 Ohm pull-up)


Ignition Configuration, 5 IGBT Outputs

IGN Output - EC36 - Color - Cylinder

10 - 33 - Blue(Tape) - Cyl 1

20 - 34 - Black - Cyl 2

30 - 36 - Brown - Cyl 4

60 - 24 - Red - Cyl 5

70 - 10 - Blue - Cyl 3

Firing Order 1-2-4-5-3


2 Analog Inputs, custom connector


Launch Control and Shift Cut Setup

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.


WBO2 Configuration

SSC Pin - Flying Lead - WB02 Pin


Suggestion - make WBO2 wire colors match the LSU4.2 sensor

SSC - Color - WBO2 Pin


General Audi Information

Pic of ECU Connector:

ECUconnector.jpg

3B Wiring Pinout:

http://www.s2central.net/motronic_pinout_3B.html

3B Wiring Schematic:

3B_ECU_Schematic.jpg

Audi 3B Information:

http://www.s2central.net/motronic_02.html

http://www.sjmautotechnik.com/trouble_shooting/20vboost.html