Page 430 of 2053
1F2 -- 8 M161 ENGINE CONTROLS
D AEW OO M Y_2000
KAB1F080
ECM WIRING DIAGRAM (2.3L DOHC -- 2 OF 7) (MSE 3.53S)
Page 431 of 2053
M161 ENGINE CONTROLS 1F2 -- 9
D AEW OO M Y_2000
KAB1F090
ECM WIRING DIAGRAM (2.3L DOHC -- 3 OF 7) (MSE 3.53S)
Page 432 of 2053
1F2 -- 10 M161 ENGINE CONTROLS
D AEW OO M Y_2000
KAB1F040
ECM WIRING DIAGRAM (2.3L DOHC -- 4 OF 7) (MSE 3.53S)
Page 433 of 2053
M161 ENGINE CONTROLS 1F2 -- 11
D AEW OO M Y_2000
KAB1F110
ECM WIRING DIAGRAM (2.3L DOHC -- 5 OF 7) (MSE 3.53S)
Page 434 of 2053
1F2 -- 12 M161 ENGINE CONTROLS
D AEW OO M Y_2000
KAB1F120
ECM WIRING DIAGRAM (2.3L DOHC -- 6 OF 7) (MSE 3.53S)
Page 435 of 2053
M161 ENGINE CONTROLS 1F2 -- 13
D AEW OO M Y_2000
KAB1F130
ECM WIRING DIAGRAM (2.3L DOHC -- 7 OF 7) (MSE 3.53S)
Page 473 of 2053
M161 ENGINE CONTROLS 1F2 -- 55
D AEW OO M Y_2000
The pressure difference between the fuel pressure and
the intake manifold is about 3.8 bars during the full load.
YAA1F500
1. Fuel Pressure Regulator
2. Intake Manifold
3. Fuel Return (to fuel tank)
4. Fuel Supply (from fuel pump)
5. Fuel Pressure (approx. 3.8 bars)
6. Intake Manifold Negative Pressure (0 bar)
The spring chamber (9) is connected to the intake man-
ifold with the vacuum hose at the intake pipe connection
(7). The negative pressure generated in the intake man-
ifold activates the diaphragm, and thus the fuel pressure
gets reduced to the rate of the operating extent of the
diaphragm by the intake manifold’s negative pressure.
YAA1F510
Consequently, the fuel pressure in the fuel distributor
changes by the intake manifold’s negative pressure, and
the injector ’s fuel pressure gets reduced independentlyto the throttle valve’s position. Thus, the fuel injection
volume can only be determined according to the injec-
tor’s injecting duration.
The pressure difference between the fuel pressure and
the intake manifold is approx. 3.2 bars during idling.
YAA1F520
1. Fuel Pressure Regulator
2. Intake Manifold
3. Fuel Return (to fuel tank)
4. Fuel Supply (from fuel pump)
7. Fuel Pressure (approx. 3.2 bars)
8. Intake Manifold Negative Pressure (0.6 bars)
YAA1F530
A. Fuel pressure
B. Intake Manifold Negative Pressure
LL. Idling
TL. Partial load
VL. Full load
Page 795 of 2053
1F3 -- 38 OM600 ENGINE CONTROLS
D AEW OO M Y_2000
Digital Tester, RIV Method
(Connection Diagram for Testers Without Adapter)
1 Fuel Injection Pump
2 Rl Sensor
3 Digital Tester4 TDC Pulse Sender Unit
5 Battery
