S40PRO Power Connection Connections s
Fused 12V WIRING SCHEMATIC FOR S40PRO
Drawn from pin insertion side
LAST UPDATED 17/9/08 Tel +44 (0)161 877 1419 Fax +44 (0)161 877 7086 Email
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NEEDS FIRMWARE V43.00 AND HIGHER FOR ALL OPTIONS
4 & 1 l y C y l l 1 a l i u o s C U
Fused 12V
86
3 & 2 l y C y l 2 l a l i u o s C U
85 Fuel Pump Relay
1
4
10
Fan/Aux 2/ Turbo Valve
18 26
11
12
13
14
19
20
21
22
23
27
28
29
30
Fuse 20 Amp
Battery + The fuse protects the ECU in the case of severe errors in the wiring (12V to Sensor GND for instance). With it you cannot damage the ECU, without it you can.
8
7
15
12v supply circuit
Why The Fuse?
6
5
9 Fused 12V
Shift Light or VTEC
Tacho
Inj 2 or Idle Valve
3
2
1 j n I
Ignition switch
86
20 Amp Fuse MUST
30
Relay Bosch 0332 014 112 or equiv
85 87
Battery -
GND
31
32
16
17
24
25 33
See Notes on injector connections.
34
S40PRO Sensor Connections Drawn from pin insertion side 5V Sensor GND
5V 1 Shift Cut or E85 Sensor or Air Con Signal
3
2
4
6
5
8
7
9 CAN L (CAN -)
10
12
11
13
16
15
14
17
Crank VR 18
21
20
19
23
22
24
Analogue 1 /Oil Temp/Launch RPM (See Page 3)
25
5V From ECU 26
Sensor GND
t c e f f E l l a H d e e p S l e e h W
27
D N G r o s n e S
28
l a n g i S a d b m a L
29
h c t i w S h c n u a L
30
31
r e t e m o i t n e t o P e l t t o r h T
e r u s 2 s e e r u P g l i o l O a n r A o
32
p m e T r i A
p m e T r e t a W
33
34
e r u ) s N s 3 e A r e P C u l r ( g e a H o e l u a F G N n r r A A o o C
MAP
Sensor Connections Crank sensor connections Use twisted pair wire with overall screen for crank sensor VR sensor pin outs (magnetic) Ford inc Duratec Pin 1 to pin 19 Pin 2 to Sensor GND Shield to Sensor GND at ECU Vauxhall/Opel/BMW/Volvo/Saab/ etc. (Bosch & Siemens) Pin 1 to pin 19 Pin 2 to pin Sensor GND Pin 3 to shield to Sensor GND at ECU Marelli Pin 2 to pin 19 Pin 1 to Sensor GND Shield to Sensor GND at ECU
Manifold Pressure Sensors GM Map A = Sensor GND B = Signal C= 5 Volt Bosch Map 0261 230 004 1= 5 Volt 2= GND 3=Signal Marrelli Map A = 5V B = Sensor GND C = Signal
All 5 volt and Sensor Gnd connections are equivalent. Use the ones which are most suitable for the sensors connected. If not using twisted pair wire, twist together separate wires a pitch of approx. 2.5 cm
Note all injectors must be high impedance types or use a ballast resistor.
Coil Wiring Wasted Spark
Single Injector
For a 4 cylinder engine with a firing order of 1/3/4/2 wire as below.
The S40 has semi-sequential injection, for a firing order of 1/3/4/2 wire as below Cyl 1 3 4 2 O/P 1 2 1 2
Cyl Cyl O/P
1 4 1
3 2 2
Twin Injectors
Distributor
Wire the lower set of injectors in parallel on o/p 1 The upper set on o/p 2
Use Coil output 1.. Flash Programming Switch
Serial Port Connections 1 -> 1 2 -> 2 3 -> 3 9 - 15 pin (Dyno Control Box uses the rest) 4 -> 4 5 -> 5
8 13
Output Driver Limitations All Auxiliaries Unless otherwise stated
1 Amp
Injector Drivers Coil Drivers
5 Amp 9 amp
150mm 1 Gnd
Connect pull up resistor as shown 1 K Ohm
2 Signal
Oil Temp Sensor
any value 500 Ohm to 20 K Ohm
Resistor
4 mm Ring
Colvern (Jenvey) pot Red = Wiper Green or Blue = 5v Yellow or Black = Sensor GND
VDO Pressure Adapter Connections
Analogue 1 as Oil Temp
Throttle pot Connect 5 v to side to which throttle wiper goes at full open
Injector Wiring
5V
Pin 25
Sensor GND
560 Ohm Pull Up
3 5 Volt 3 pin AMP Superseal
Air Conditioner Connections 12V Control To Compressor Signal Ground Relay Bosch 0332 014 112 or equiv
Power Ground
S40 Pin 11
Air Compressor
Crank Sensor On the left is an oscilloscope trace of a good clean signal from a magnetic crank sensor on a 36 - 1 wheel. Note the voltage rising through the gap. This is the correct polarity. If the voltage falls through the gap then the engine may start but at a certain RPM will begin to give crank shaft errors and re-synchronisations. The voltage variation is caused by successive compression strokes slowing the rotation speed during cranking.
On the right is a more detailed view of the gap itself. Note the voltage rising as the gap traverses the sensor. You can also see that this signal is free of high frequency noise. The correct screened twisted pair wire has been used for this sensor. Both cam and crank traces are from the same vehicle.
