Start quantity control - GF07.61-P-3010GS

ENGINE 111.951 /952 /955 /956 /957 /958 /982 /983 with CODE (925) low emission EURO3 

Fig 1: Start Quantity Control Function Diagram -- Engine 111.951 /952 /955 /956 /957 /958 /982 /983 With Code (925) Low Emission Euro3

Task 

Fuel is injected additionally during the start operation, irrespective of the coolant temperature, in order to facilitate starting of the cold engine. The increased quantity of fuel injected is achieved by extending the injection time.

Design/function 

The start quantity control is dependent on:

• Start recognition
• Coolant temperature
• Engine speed
• Switch-off time of engine

The start quantity control is enabled after start recognition. It remains activated until an engine speed related to coolant temperature is exceeded.

The higher the coolant temperature, the lower is the start quantity enable by the ME-SFI control module.

	ME-SFI control module position / task / design / function		GF07.61-P-5000GS
	Start recognition function	through circuit 50	GF07.13-P-3014G
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	Coolant temperature sensor position/task/design/function		GF07.04-P-5026G
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	Fuel injector position/task/design/function		GF07.03-P-5004F
	ME-SFI control module voltage supply function		GF07.61-P-5001F
	Engine diagnosis malfunction indicator lamp position/task/function		GF54.30-P-4102A
	CHECK-ENGINE malfunction indicator lamp (A1e26) position/task/function		GF07.13-P-3144F
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