Auto Manual of VW Passat B5

5.1. Specifications of control systems of the engine

THE GENERAL DATA

	Engine code Control system of the engine
	AHL	ADP	ADR	AEB	AGZ	ACK/ALG
	Simos 2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2
Turns The single Course, Rpm	760 – 960	760 – 960	760 – 960	760 – 960	650 – 750	710 – 860
The maintenance WITH, %	0,5	0,5	0,3	0,5	0,5	0,5
The maximum Turns, Rpm	6500	6500	6500	6500	6500	6500

Regulator of pressure of fuel

	Engine code Control system of the engine
	AHL	ADP	ADR	AEB	AGZ	ACK/ALG
	Simos 2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2
Pressure of fuel upon idling turns:
– A vacuum hose
• it is connected, a bar	3,5	3,5	3,5	3,5	2,5	3,5
• it is disconnected, a bar	4,0	4,0	4,0	4,0	3,0	4,0
Pressure in fuel system in 10 minutes after engine deenergizing, a bar	2,5	2,5	2,0	2,0	2,0	2,2

Fuel atomizers

	Engine code Control system of the engine
	AHL	ADP	ADR	AEB	AGZ	ACK/ALG
	Simos 2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2	Motronic 3.8.2
Productivity, ml/30 сек	–	85 – 105	85 – 105	130 – 150	90 – 125	90 – 125
Resistance, Ohm	14 – 17	12 – 15	12 – 15	12 – 15	14 – 17	15 – 21,5

On cars with petrol engines various control systems of the engine are established.

The engine	Control system of the engine
1,6-I AHL	Simos 2
1,6-I ADP	Motronic 3.2
1,8-I, 2,3-I	Motronic 3.8.2
2,8-I (V6)	Motronic 3.8.2

Application of an electronic control system by the engine has following advantages:

 – Optimum giving of fuel in the engine on all эксплуатаци онных modes therefore the fuel expense decreases at preservation of dynamic characteristics of the car is provided;
 – In connection with fuller combustion of fuel, and also catalyst use emission of harmful substances together with exhaust gases decreases;
 – As the electronic control system of the engine defines and writes down in memory of malfunction, search and detection of malfunctions is considerably accelerated;
 – The control system of the engine on all operational modes establishes an optimum angle of an advancing of ignition, the moment and quantity of fuel submitted to the engine. Also the control system of the engine co-operates with other systems of the car, in particular, with a control system of an automatic transmission or with anticreeping system.

Components of a control system of the engine are very reliable and practically do not demand service. At maintenance service it is necessary to make only replacement of the air filter and spark plugs. As for check, adjustment and repair of a control system by the engine it is necessary to use the difficult expensive equipment this work is necessary for making at specialised servicing deport.

While in service the car it is not required to make adjustment of turns of idling and the maintenance WITH in exhaust gases.

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The prevention

At work on system of ignition it is necessary to be careful with the included ignition, as it is possible to receive blow by a current from a high-voltage part of system of ignition. People from a stimulator ми are not recommended warm activity to check and make repair of a control system by the engine. Switch off ignition before a detachment or connection of any element of system of ignition or щупов the measuring device.

The fuel system is under constant pressure, even after engine deenergizing, therefore at carrying out of any works on fuel system it is necessary to remove pressure.

For prevention of possibility of casual short circuits of an electric chain and damage of electronic components of a control system by the engine always remove a wire of weight from the accumulator.

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Before performance of any works on a control system of the engine cause from memory the malfunctions written down in it. Also check up tightness of fuel system and system of giving of air in the engine.

Normal work of a control system as the engine is possible only at pressure in a car network not below 11,5 Century

If after work on a control system of the engine, the engine is started and through short time stops, probably, the engine is switched off by anticreeping system. In this case cause from memory the malfunctions written down in it and, if necessary, adjust a control system of the engine.