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Digifant Ii Manual

Digifant Ii Manual Rating: 4,2/5 3182 votes

Digifant I, Digifant II Shop Pro Training Manual Digifant I, Digifant II Shop Pro Training Manual In this pdf material you will find informations on checking, troubleshooting, servicing, adjusting and inspecting the Digifant I and Digifant II engine management system, an electronic fuel injection system designed by Volkswagen Group (Volkswagen AG) and Bosch. 2014-5-5 but here's a copy of the VW digifant-II Engine management Service training manual more than you'd hope to need to know. I haven't had a need but I like to keep the service manuals handy. Digifant Engine managment manual Digifant-II pro training manual Specifically pages 31-32-33 & 63, 64 regarding fuel pumps shows the wiring to the relays.

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Digifant II

Digifant II was the secondin a line of Digifant injection systems (Digijet was Volkswagen's first electronic injection system, then Digifant I, which is very similar to Digifant II, were both used on the Vanagon in the early 80s). Unlike Digijet, it integrates digital ignition control as well. It is full electronic, and uses individual electronically controlled injectors, which are batch-fired. It has integrated fault memory and diagnosis, and was equipped with an OBD fault warning light in California models before the more emissions-specific Digifant I was released. Digifant II receives information from the hall generator (provides engine speed), the air flow sensor (provides engine load), the coolant temperature sensor, the air intake temperature sensor, the oxygen sensor, basic throttle position, and the knock sensor to adjust the fuel/air mixture. Unlike Jetronic or Motronic, the engine control unit has full control of the fuel mixture, taking into account engine load and speed, and referencing a map to produce a value for injector timing (all injectors are wired in parallel and are batch fired). Adjustments are made for a cold engine, high load (A/C), idle, or full throttle. Ignition timing is referenced in the same way, taking into account knock, in addition to load and speed.
Corrado G60 engines also use this same connector, referred to as 'Digifant I', but is not related to the California emissions Digifant I. It has the same pin-out as Digifant II, though with boost enrichment, and a CO potentiometer rather then a mass airflow sensor.

A2Resource > Electrical Systems > Management > Digifant II Pinout
Digifant II Engine Controller:
Pin	Function	Color- USA Golf	Color- CE1 Digifant	Color- CE2 Digifant
1	Starter Power	Black/Red	Red	Red/Green
2	Oxygen Sensor	Green	Green	Green
3	Fuel Pump	Brown/Green	Red/Yellow	Red/Yellow
4	Knock Sensor	Violet/White	Yellow	Yellow
5	Knock Sensor	Black/Red	Black	Black
6	Ground for sensors	Gray/Yellow	Brown/White	Brown/White
7	Knock Sensor shield	Braided Wire	Braided Wire	Braided Wire
8	Distributor Pin 3 (positive)	Brown/Black	Red/Black	Red/Black
9	Intake Air Temperature Sensor	Red/White	Blue/White	Blue/White
10	Coolant Temperature Sensor	Blue/Yellow	Brown/Green	Brown/Green
11	Idle/WOT Switch	Blue/White	Red/Blue	Red/Blue
12	Injector Power	White/Black	Red	Brown/Yellow
13	Ground	-	Brown	Brown
14	Power from Control Unit Relay	Green/White	Black/Yellow	Black/Yellow
15	-	-	-	-
16	A/C compressor signal	Brown/Blue	Green	Green
17	Airflow Sensor Potentiometer	Gray/Green	Blue/Black	Blue/Black
18	Distributor Pin 2 (hall sender)	Green/White	Green/White	Green/White
19	Ground	Brown	Brown/Black	Brown/Black
20	Malfunction Light/Switch	Blue/Brown	White/Red	White/Red
21	Airflow Sensor Potentiometer	White/Yellow	Blue/Red	Blue/Red
22	Idle Stabilizer Valve	Brown/Red	White	Yellow
23	Idle Stabilizer Valve	Green/Red	Yellow	White
24	-	-	-	-
25	To Ignition Control Unit	Green/Blue	Green	Green

Ignition Controller (Digifant II only):
Pin	Function	Color (US Golf)	Color (CE1/CE2)
1	Coil Pin 1	Green/Blue	Red/Black
2	Ground	Brown	Brown/White
3	-	-	-
4	Start/Run power	Yellow	Black
5	-	-	-
6	To Digifant ECU	Green/Blue	Green
7	-	-	-

Digifant I G60 Engine Controller:
Pin	Function	Color- 1990 G60	Color- 1991 G60	Color- 1992 G60
1	Starter Power	Red/Green	Red/Green	Red/Green
2	Oxygen Sensor	Green	Violet	Violet
3	Fuel Pump	Red/Yellow	Yellow/Blue	Yellow/Blue
4	Knock Sensor	White	White	White
5	CO Potentiometer	Blue	Blue	Blue
6	Ground for sensors	Brown/White	Brown/White	Brown/White
7	Knock Sensor shield and ground	Braided Wire and Brown	Black and Yellow	Black and Yellow
8	Distributor Pin 3 (positive)	Red/Black	Red/Black	Red/Black
9	Intake Air Temperature Sensor	Blue/White	Blue/White	Blue/White
10	Coolant Temperature Sensor	Brown/Green	Brown/Green	Brown/Green
11	Idle/WOT Switch	Red/Blue	Red/Blue	Red/Blue
12	Injector Power	Red	Brown/Yellow	Brown/Yellow
13	Ground	Brown	Brown	Brown
14	Power from Control Unit Relay	Black/Yellow	Black/Yellow	Black/Yellow
15	Fuel Enrichment Switch	Blue/Black	Blue/Black	Blue/Black
16	A/C compressor signal	Green	Green	Green
17	Airflow Sensor Potentiometer	-	-	-
18	Distributor Pin 2 (hall sender)	Green/White	Green/White	Green/White
19	Ground	Brown/Black	Brown/White	Brown/White
20	Malfunction Light/Switch	Yellow	-	-
21	A/T Controller	-	Yellow/Red	Yellow/Red
22	Idle Stabilizer Valve	White	White	White
23	Control Unit Relay Turn-On	Black/White	-	-
24	Tachometer signal to cluster	-	-	Green/Yellow
25	To Ignition Coil Pin 1	Green	Green	Green

Digifant II

Digifant II Engine Controller:

Ignition Controller (Digifant II only):

Digifant I G60 Engine Controller: