S2 K Series Wiring Diagram

[Dazzx10r]

Does anyone have a copy of the wiring diagram for the engine/ecu also the ecu to main loom? I have a copy of the lotus manual on cd but the quality is very poor and it does'nt show the wiring colours or the pin outs on the ecu. As most of you on here know I am well on my way through my own diy Audi engine conversion. The engine is in, all that is left to do is wire it up, fit the intercooler, get custom driveshafts (got a contact for this) and fit a remote oil filter. I have loads of pics on my phone showing the conversion step by step, I just need to find the time to sit down and put them onto my pc and then post on here.

[Martin R]

I have one but im not near it till Monday if no one else can help you.

[varnum]

What details do you need, I have an ECU Pin layout for an Emerald, which is wired as per a MEM's ECU if thats any help?

 

Emerald Manual attached.

 

Tim

EmeraldK3Manualdraftv057.pdf

[r339xjw]

1 Black-Blue (BU) Lambda 1 Pin 3

2 ------------------

3 Blue-Yellow (UY) Lambda 2 Pin 1 - Via EHC 2 Pin 3

4 Blue-Purple (UP) Crankshaft sensor Pin 2

5 ------------------

6 Blue (U) Oil Pressure?? To 4 pin plug tied back??

7 Pink-Black (KB) Engine coolant sensor (Brown One) Pin 1

8 Yellow-Purple (YP) MAP sensor Pin D (wiper)

9 ------------------

10 ------------------

11 ------------------

12 ------------------

13 Orange-Slate (OS) Output for IACV Pin 3 ( C)

14 Yellow-Brown (YN) Injector 3 Drive (GND)

15 Green-Yellow (GY) Lambda 1 Pin 1

16 Yellow-Purple (YP) Camshaft Sensor Pin 2

17 Black-Slate (BS) Crankshaft sensor screen ground

18 ? Pink-Black (KB) IAT sensor Pin 1

19 Brown-Pink (NK) IGN Power From main relay

20 Green-Yellow (GY) Throttle Possition Sensor Pin 2

21 Slate-White (SW) To EHC 2 Pin 1

22

23

24 Orange-Blue (QB) Output for IACV Pin 4 (D)

25 Yellow-Blue (YU) Injector 1 Drive (GND)

26 White-Black (WB) Igntion coil 2 Pin 2 (GRD)

27 Green-Black (GB) Lambda 2 Pin 3 - Via EHC 2 Pin 13

28 Black-Pink (BK) Screen for Lambda 1

29 Blue-Red (UR) Lambda 2 Pin 2 - Via EHC 2 Pin 14

30 White-Blue (WU) Crankshaft sensor Pin 1

31 Pink-Black (KB) MAP sensor Pin A (Ground)

32 Green-Brown (GN) Oil Pressure?? To 4 pin plug tied back??

33 Pink-Green (KG) Engine coolant sensor (Brown One) Pin 2

34 Pink-Black (KB) Throttle Possition Sensor Pin 3

35 White-Red (WR) Alternator connection to ECU

36

37 Pink-Black (KB) To EHC 2 Pin 2

38 Black-Brown (BN) Canister Purge Valve control (GND)

39 Orange-Green (OG) Output for IACV Pin 2 (

40 Yellow-Brown (YN) Injector 4 Drive (GND)

41 Green-Brown (GN) Lambda 1 Pin 2

42 Black Slate (BS) Camshaft Sensor Pin 3

43 -----------------

44 Yellow-White (YW) Ait intake Temp Sender

45 Red-Green (RG) MAP sensor Pin C (5 V)

46 Pink-Purple (KP) Throttle Possition Sensor Pin 1

47 -----------------

48 -----------------

49 -----------------

50 Pink-Blue (KU) Output for IACV Pin 1 (A)

51 Yellow-Green (YG) Injector 2 Drive (GND)

52 White-Orange (WO) Ignition Coil 1 Pin 2 (GRD)

 

 

 

53 Blue-Black -----------------

54 White-Pink (WK) ECU relay trigger to MRFU1 Pin 3

55 White-Black (WB) Tacho Drive to dashboard to Pin A4

56 Pink-Blue

57 Brown-Black Heat Soak relay trigger

58 White-Yellow (WY) OBD Pin 7

59 Black ( ECU Ground

60 Blue-Green -----------------

61 Light Green (LG) IGN Power fused from key barrel

62 Tuerquise (very Light green) OBD Pin 15

63 Purple-Yellow

64 Light Purple (LP) Wheel speed sensor Pin B

65 Red ® OBD Pin 6

66 Black ( ECU Ground

67 Blue-Slate Brown-Black (NB) Radiator fan Trigger (GRD)

68 Black-Purple (BP) Fuel Pump Relay Trigger MRFU1 Pin 2

69 White Purple (WP) MIL output to dashboard Pin B5

70 Black-Orange

71 Black

72 Green-Blue (GU) Water Temp Output to Dashboard Pin A6

73 Black ( ECU Ground

74 Yellow-Slate (YS) Speedo Output to Dashboard Pin A5

75 Green-Red

76 Red-Green

77 Blue-White

78 Brown (N) Wheel speed sensor Pin A

79 Blue (U) OBD Pin 14

80 Purple (P) Permanent Power from Battery Via Fuse 'B' 7.5A

[Dazzx10r]

Thank guys thats great! I have the lotus wiring diagram now.