gf0761p4010g

Synchronizing fuel injection and firing order with incremental control function

Type gf · emne 07.61 · version 0102 · 2001-11-26

Gælder for: ENGINE 111.921 /946 /970 /974 /977 ENGINE 111.945 with CODE (498) as of Model Year 96 Japanese version ENGINE 111.945 except CODE (498) Japanese version ENGINE 111.942 as of 1.7.96 ENGINE 111.944 /975 up to 31.7.96 ENGINE 166.940 /960 /990 /995 ENGINE 166.960 with CODE (922) Power-reduced

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 1 Motor › 07 Blandingstilberedning › 07.61 Benzinindsprøjtnings- og tændingssystem ME — Serie 166 (modeller 940, 960, 990, 995)

Gælder også for motorer/gearkasser: 111 921, 111 942, 111 944, 111 945, 111 946, 111 970, 111 974, 111 975, 111 977

GF07.61-P-4010G

Synchronizing fuel injection and firing order with incremental control function

26.4.99

ENGINE 111.921 /946 /970 /974 /977

ENGINE 111.945 with CODE (498) as of Model Year 96 Japanese version

ENGINE 111.945 except CODE (498) Japanese version

ENGINE 111.942 as of 1.7.96

ENGINE 111.944 /975 up to 31.7.96

ENGINE 166.940 /960 /990 /995

ENGINE 166.960 with CODE (922) Power-reduced

Synchronizing fuel injection and firing order with incremental control function

P07.61-0257-05

Signal assignment engine 111

1 Crank angle
2 Cylinder ignition TDC
3 Signal of crankshaft position sensor (L5)
4 Signal of camshaft Hall sensor (B6/1)
5 Speed signal TNA

When the crankshaft is rotating, an alternating voltage is generated in the crankshaft position sensor by the teeth of the driven plate. In this case, each tooth generates an alternating voltage signal.

No voltage is generated as a result of the gap created by 2 missing teeth. The engine control module detects the TDC position of cylinders 1 and 4 with the 2nd negative slope after the gap.

Synchronizing fuel injection and firing order with incremental control function

P07.51-0540-05

Signal assignment engine 166

1 Crank angle
2 Cylinder ignition TDC
3 Signal of crankshaft position sensor (L5)
4 Signal of camshaft Hall sensor (B6/1)
5 Speed signal TNA

If, at this moment, the signal from the camshaft Hall sensor is at
0 volt ("low"), the engine control module processes this in order to detect ignition TDC of cylinder 1.

The synchronization of the fuel injection and firing order undergoes further processing by the engine control module for actuating the ignition coils and injectors. In addition, it is required for the knock sensor system and for the fuel shutoff at individual cylinders.

If no signal is received from the camshaft Hall sensor, the engine control module determines the ignition TDC of cylinder 1 at random. The engine starts about 1 second later.