Test Step	Test scope	Test connection			Test condition	Nominal value	Possible cause/Remedy
1.0	Check operation of start valve and for leakage				Ignition: OFF Remove start valve and reconnect to fuel line. ECT sensor (B11/2) unplugged. Using two resistance substitution units, simulate 10 k resistance (- 10°C) at connector sockets 2 and 4 as well as at sockets 1 and 3 ( 33 , Figure 1 and 2). Hold start valve in a container. Engine: Start Ignition: OFF Wipe start valve nozzle dry.	Start valve must spray fuel while cranking starter. No drops of fuel should form.	Replace start valve. Check electrical control of start valve, see 23 31.0. Replace start valve.
2.0	After-start enrichment	1	Y1	2	Ignition: OFF Connect test cable (033) to electrohydraulic actuator (Y1). ECT sensor (B11/2) unplugged. Using two resistance substitution units, simulate 10 k resistance (- 10°C) at connector sockets 2 and 4 as well as at sockets 1 and 3 ( 33 , Figure 1 and 2). Engine: Start	See Table I for current values.	23 13.0.

Table I Test and Adjustment Data

Engine	Current at EHA with ignition ON (mA)	After-start enrichment at an engine coolant temperature of + 20oC (mA)
104	20	3 - 5 1)
119	75	5 - 8 1)

1) Read value 0 - 15 seconds after startup.