Rover 820 Lucas ECU Ignition System


 
Lucas ABU 17 Ignition ECU Pinout
Ignition ECU Pin No.
Function
Wire Colour
 Remmarks
1
From Knock Sensor 
 Light Green/Grey
 Screened Lead
2
 From CTS 
 
 Shared with Fuel ECU
3
From Knock Sensor 
 Grey
 Screened Lead
4
From CAS
White/Blue
 Screened lead
 5
 
 
 
 6
 From CAS
 Blue/Pink
 Screened lead
 7
 
 
 
 8
 To Fuel. ECU Pin 17
 Pink/Orange
 Square Wave ?
 9
 + Ve feed from Ignition Switch 
 Light Green
 also feeds coil +Ve
10
 Coil  -ve
 White/Black
 also feeds Tacho.
11
 To Fuel ECU Pin 39
 White /Grey
 
12
 Ground to Chassis
 Black
 Check Ressistance
 
 
 
 

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