VE Injection Pump Data: 6-Cylinder Engine Performance (VP44) (Articles)

Target data for measurement blocks of 6-cylinder VE engines (VP44)

Engine codes: AFB | AKE | AKN
Engine at operating temperature (coolant temperature ≥ 80 °C). LL = idle, VL = full load, - = no specified value.


Measurement block 0 - Baseline values

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
0	1	Engine speed	30..36	120..140	32..36	140..180	30..36	120..140
	2	Start of injection	51..73	109..145	51..88	> 120	54..78	109..145
	3	Accelerator pedal position	0	255	0	255	0	255
	4	Injection quantity	10..30	121..134	10..30	113..127	10..30	121..134
	5	Intake manifold pressure	-	181..221	-	187..215	-	181..221
	6	Atmospheric pressure	-	-	-	-	-	-
	7	Coolant temperature	80..35	80..35	80..45	80..45	80..35	80..35
	8	Intake manifold temperature	85..216	85..216	-	-	85..216	85..216
	9	Fuel temperature	120..230	120..230	-	-	120..230	120..230
	10	Intake air mass	53..98	> 192	50..70	> 185	40..120	> 192

Measurement block 1 - Baseline values at idle

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
1	1	Engine speed in RPM	700..840				700..840
	2	Injection quantity in mg/stroke	3..9				3..9
	3	Quantity solenoid valve activation duration	15..25				15..25
	4	Coolant temperature in °C	80..110				80..110

Measurement block 2 - Operating state at idle

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
2	1	Engine speed in RPM	700..840				700..840
	2	Accelerator pedal position in %	0				0
	3	Operating state	00100				00100
	4	Coolant temperature in °C	80..110				80..110

Measurement block 3 - Air masses / EGR at idle

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
3	1	Engine speed in RPM	700..840				700..840
	2	Air mass setpoint in mg/stroke	210..385				157..471
	3	Actual air mass in mg/stroke	210..385				157..471
	4	EGR valve duty cycle in %	40..84				40..84

Measurement block 4 - Start of injection

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
4	1	Engine speed in RPM	700..840	2800..3200			700..840	2800..3200
	2	Start of injection setpoint	1.1°..4.2°BTDC	5..10°BTDC			1.1°..4.2°BTDC	5..10°BTDC
	3	Actual start of injection	1.1°..4.2°BTDC	5..10°BTDC			1.1°..4.2°BTDC	5..10°BTDC
	4	Injection start valve duty cycle	3..70	80..95			3..70	50..95

Measurement block 8 - Injection quantities at full load

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
8	1	Engine speed in RPM		2800..3200				2800..3200
	2	Injection quantity, driver demand in mg/stroke		45..49				45..49
	3	Torque limitation in mg/stroke		37..42				37..42
	4	Smoke limitation in mg/stroke		39..47				39..47

Measurement block 10 - Full load boost pressure

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
10	1	Actual air mass in mg/stroke		> 750				> 750
	2	Atmospheric pressure in mbar		-				-
	3	Intake manifold pressure in mbar		1850..2250				1850..2250
	4	Accelerator pedal position in %		100				100

Measurement block 11 - Boost pressure control

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
11	1	Engine speed in RPM		2800..3200				2800..3200
	2	Boost pressure setpoint in mbar		1850..2250				1850..2250
	3	Actual boost pressure in mbar		1850..2250				1850..2250
	4	Boost pressure valve duty cycle in %		45..95				45..95

Measurement block 13 - Quantity difference cylinders 1-3 at idle

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
13	1	Quantity difference cylinder 2 vs 3 in mg/stroke	-2.0..+ 2.0				-2.0..+ 2.0
	2	Quantity difference cylinder 1 vs 2 in mg/stroke	-2.0..+ 2.0				-2.0..+ 2.0

Measurement block 14 - Quantity difference cylinders 4-6 at idle

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
14	1	Quantity difference cylinder 6 vs 2 in mg/stroke	-2.0..+ 2.0				-2.0..+ 2.0
	2	Quantity difference cylinder 4 vs 2 in mg/stroke	-2.0..+ 2.0				-2.0..+ 2.0
	3	Quantity difference cylinder 5 vs 2 in mg/stroke	-2.0..+ 2.0				-2.0..+ 2.0

Measurement block 18 - Supply voltage at idle

MB	F	Description	AFB LL	AFB VL	AKE LL	AKE VL	AKN LL	AKN VL
18	1	Injection pump supply voltage in V	13..14.8				13..14.8
	2	Control unit supply voltage in V	13..14.8				13..14.8
	3	Injection pump data	00000000				00000000

Source: community.dieselschrauber.org – Michael II