1A-20 Engine General Information and Diagnosis:
1. Air cleaner 16. CMP sensor 31. Battery
2. EVAP canister purge valve 17. CKP sensor 32. A/C compressor relay
3. MAF and IAT sensor 18. Radiator cooling fan 33. A/C switch
4. TP sensor 19. Combination meter 34. A/C evaporator outlet air temp. sensor (manual A/C model)
5. Throttle actuator 20. BCM 35. Immobilizer coil antenna
6. MAP sensor 21. Ignition switch 36. Main relay
7. EGR valve 22. Starter magnetic switch 37. APP sensor
8. EVAP canister 23. HO2S-2 38. Oil control valve (VVT model)
9. Tank pressure control valve (built-in fuel pump) 24. DLC 39. TCM (A/T model)
10. Fuel pump (with pressure regulator) 25. Electric load 40. Starting motor control relay
11. Ignition coil assembly 26. Fuel level sensor 41. A/C refrigerant pressure sensor
12. Fuel injector 27. Brake light 42. Throttle actuator control relay
13. HO2S-1 28. Brake light switch 43. ABS/ESP® control module
14. Knock sensor 29. ECM 44. Wheel speed sensor (VSS)
15. ECT sensor 30. Barometric pressure sensor