SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4LV Injection and Ignition System | Self diagnosis, V.A.G Inspection Service | Self-diagnosis - general considerations | Self-diagnosis technical data | Implementation

Selectable functions when using fault reader V.A.G. 1551/1552 or unit VAS 5051 > < Selectable functions when using the V.A.G. 1551 or V.A.G. 1552

Implementation

Implementation

Engine code letters		AQQ	AUB
System designation		MARELLI 4LV	MARELLI 4LV
Exhaust emissions according to		Standard D4	Standard EU4
Electronic accelerator		Yes	Yes
Self-diagnosis		Yes	Yes
Final control diagnosis		Yes	Yes
Data transmission mode to the -V.A.G. 1551/1552-		Rapid data transmission	Rapid data transmission
Control unit encoding		-V.A.G. 1551/1552--VAS 5051-
Fault memory		Permanent memory → Note	Stable memory → Note
Self-adapting value memory		Volatile memory → Note	Volatile memory → Note)
Lambda control		Yes	2 probes
Knock control		1 knock sensor	1 knock sensor
Variable intake manifold		No	No
Variable distribution		No	No
Supercharger pressure control		No	No
Secondary air system			No
Exhaust gas recirculation			Yes

¹⁾	Independent of the voltage supply.

²⁾	The values are cleared in the event of an interruption in the voltage supply.

Power unit
4LV Injection and Ignition System / Self diagnosis, V.A.G Inspection Service / Self-diagnosis - general considerations / lf-diagnosis_technical_data/">Self-diagnosis technical data
Implementation

Selectable functions when using fault reader V.A.G. 1551/1552 or unit VAS 5051 > < Selectable functions when using the V.A.G. 1551 or V.A.G. 1552