visit this link below if your Marea is 1.6 auto
http://www.italiaauto.com/forum/viewtopic.php?t=1183
or see photo attached
1. Fuel cut off solenoid valve (underneath)
2. Carbon Filter (underneath)
3. Lambda sensor harness (in the black plastic cover)
4. Manifold Absolute pressure sensor (MAP) (in the black
plastic cover)
5. 5A fuse for injection-ignition system (in the black plastic cover)
6. 20A fuse protecting components supply by the dual relay
(electric pump, lambda probe, injectors & fuel vapour solenoid
(in the black plastic cover)
7. Dual relay (in the black plastic cover)
8. Hose for Fuel pressure regulator
9. Air Temperature sensor
10. Stepper Motor a.k.a engine idle speed actuator
11. Throttle position sensor
12. General 30A system fuse
13. ABS - electro-hydraulic control unit
14. Injection- ignition ECU
15. Coolant Temperature Sensor (below the ignition coil)
16. Fuel pressure regulator (under the cover)
17. Timing sensor (at camshaft intake sprocket) & TDC sensor (bottom near main pulley)