1990 VW Corrado 16V turbo Digifant I

 

16VT’s involvement: Supplied a fully functional plug and play Megasquirt ECU + injectors for a customer in Germany; calibrated fuel, ignition and idle on a local vehicle with similar hardware before shipping out the loom+ECU.

 
Chassis: stock;

Forced induction: GT28RS.

Engine: 1800cc, KR engine code, 16 valve, Audi 20V intake manifold.

Injection: Port injection, 440cc/min Lucas highZ injectors, Bosch coolant and Bosch intake temp sensors.

Description:  The objective was to replace the  Digifant 1 system with the megasquirt. A suitable adapter was made to link the megasquirt to the digifant 1 loom. All stock sensors were used. A V3.0 Megasquirt PCB was used.

Pin configuration:

MS GROUNDS (8,9,10,11) go to T25/13, T25/19 (black)
MS SENSOR GROUND (19) goes to T25/6 (black)
MS MAT (20) goes to T25/9 (red/black)
MS CLT (21) goes to T25/10 (yellow)
MS TPS SIGNAL (22) goes to T25/15 (blue)
MS O2 SENSOR SIGNAL (23)
goes to T25/2 (blue)
MS PIN 24 goes to T25/8 (hall sensor 12V supply via jumper from T25/14) (red)
MS PIN 6 goes to T25/18 (hall sensor signal to 4N25 via XG1) (green)
MS TPS Vref (26) goes to T25/11 (white)
MS +12V (28 ) goes to T25/14 (red)
MS FIDLE (30) goes to T25/22 (yellow)
MS INJ1 (32,33) goes to T25/12 (green)
MS INJ2 (34,35) wired externally (yellow)
MS IGN (36) goes to T25/25 (brown)
MS FUEL PUMP (37) goes to T25/3 (green)

Options included:

Launch control on pin 3 (blue/white)
Shift light on pin 4 (white) can be routed to T25/20 for check engine light on certain models
Switchable maps on pin 5 (blue)
Pin 6 used for hall sensor signal
Pin 25 is freeeeeeeeeee
Pin 27 is freeeeeeeeee (green)
Output 2 on pin 29 (yellow)
Output 1 on pin 31 (pink)

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