Volkswagen Workshop Service and Repair Manuals > Polo Mk3 > Power unit | Diesel direct injection and glow plug system up to 09.99 | Self diagnosis, V.A.G Inspection Service | Measured value blocks | Evaluating measured value blocks, engine code AGD | Display group 004 at idling speed (engine warm, coolant temperature not below 80 °C)

Display group 004 at idling speed (engine warm, coolant temperature not below 80 °C)

Display group 004 -Commencement of injection-
Read measured value block 4			→	▾ appears on display
xxxx rpm	xx.x ° BTDC	xx.x ° BTDC	xxx %
1	2	3	4	▾ display zones	Specification	Evaluation
				Duty cycle of commencement of injection valve -N108-	2…80 %	→ Chapter
			Commencement of injection (actual) with 68-pin control unit with 80-pin control unit		0…5° BTDC 0…3° BTDC	→ Chapter
		Commencement of injection (specification) with 68-pin control unit with 80-pin control unit			0…5° BTDC 0…3° BTDC	→ Chapter
	Engine speed				861…945 rpm	---