Magentis and Optima repair since 2000 of release
1. Engines
2. Greasing system
3. Cooling system
4. Control and decrease in toxicity
5. Fuel system
5.1. Specifications
5.2. Multipoint system of injection of fuel (MFI)
5.3. Checks of system of injection of MFI
5.4. Control lamp of malfunctions (MIL)
5.5. Diagnostic codes of malfunctions
5.6. The sensor of temperature of cooling liquid (ECT)
5.7. The sensor of absolute pressure in an inlet collector (MAF) with the IAT sensor
5.8. Measuring instrument of a consumption of air (MAF)
5.9. The sensor of temperature of air (IAT) arriving in the engine
5.10. Sensor of provision of a butterfly valve (TP)
5.11. Modulator of management of frequency of rotation of a cranked shaft of the engine idling
5.12. The warmed sensor of oxygen (HO2S)
5.13. Sensor of provision of a camshaft (CMP)
5.14. Sensor of an angle of rotation of a cranked shaft (CKP)
5.15. Fuel nozzles
5.16. Electromagnetic valve of system of catching паров fuels
5.17. Detonation sensor
5.18. An adjustment potentiometer WITH idling (only for etilirovanny gasoline)
5.19. Power steering (PSP) sensor [2,0 l of DOHC]
5.20. Sensor of provision of a butterfly valve (TP)
5.21. Fuel level sensor replacement (2,0 l of DOHC)
5.22. Check of the fuel pump (2,0 l of DOHC)
5.23. Check of the channel of cleaning of the canister with absorbent carbon (2,0 l of DOHC)
5.24. Check of the pressure created by the pump (2,0 l of DOHC)
5.25. Replacement of the fuel filter (2,0 l of DOHC)
5.26. Cleaning of throttle knot
5.27. Check of the channel of cleaning of the canister with absorbent carbon (2,5 l of V6)
5.28. Fuel level sensor replacement (2,5 l of V6)
5.29. Check of the fuel pump (2,5 l of V6)
5.30. Check of the pressure created by the pump (2,5 l of V6)
5.31. Replacement of the fuel filter (2,5 l of V6)
5.32. Adjustment of the sensor of provision of a butterfly valve (TP) (2,5 l of V6)
5.33. Pedal and accelerator cable
5.34. Fuel highway
5.35. Fuel tubes and tubes of system of catching паров fuels
5.36. Fuel tank
5.37. Technique of search of malfunctions
5.38. Search and elimination of malfunctions
6. Ignition system
7. Coupling
8. Transmission
9. Power shafts, axes
10. Suspension bracket
11. Steering
12. Brake system
13. Body
14. Central air
15. Electric equipment
16. Electric circuits
 










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5.3. Checks of system of injection of MFI

If MFI system components (sensors, ESM, nozzles etc.) fail, supply of fuel in engine cylinders on various operational modes that leads to the following situations is broken:

  • the engine is started hardly or not started:
  • the engine idling works unstably;
  • the engine works at all modes unstably.

In the presence of any of aforementioned situations, first of all execute usual diagnostics (system of ignition, engine adjustment etc.) then check MFI system components.


«on a step back
5.2. Multipoint system of injection of fuel (MFI)
on the following page»
5.4. Control lamp of malfunctions (MIL)