Control unit for the Digifant system, lambda probe and injection nozzles (VW Golf 3)

Figure 22. Control device of the "Digifant" system, lambda probe and injection nozzles:

• G39 - Lambda probe with heating
• J169 - "Digifant" system management device
• J176 - relay for supplying current to the "Digifant" system control unit
• N30 - injection valve cylinder N1
• N31 - injection valve cylinder N₂
• N32 - injection valve cylinder N3
• N33 - injection valve cylinder N4
• N70 - idle speed control valve, near the intake port
• T5a - 5-pin plug, to the front wall on the left

Connection points with the body (in circle):

• 18 - ground point, to the cylinder block
• G3 - positive connection in the injection nozzle conduit
• G4 - connection in the conduit of injection nozzles
• T2d - double plug, near the suction channel

Cable color designations:

• ws - white
• sw - black
• ro - red
• br brown
• gn - green
• gr - gray
• li - purple
• ge - yellow
• bl - blue

List of fuses:

• 30A - green color
• 25A - white
• 20A - yellow
• 15A - blue
• 10A - red