Mounting locations for emission reduction system units on a 4-cylinder engine
1. Diagnostic connector; 2. Vacuum distributor controlling the recirculation valve; 3. Recirculation valve; 4. Absolute pressure sensor in the suction manifold; 5. Throttle angle sensor; 6. Fluid temperature sensor; 7. Block of ignition coils; 8. Oxygen sensor
Arrangement of devices of systems of decrease in toxicity on the 6-cylinder engine
1. Diagnostic connector; 2. Recirculation valve; 3. Idle air bypass valve; 4. Throttle angle sensor; 5. Flow rate sensor; 6. Ignition block; 7. Oxygen sensor; 8. Blocks of ignition coils; 9. Fluid temperature sensor
The cars in question are equipped with several systems for reducing the toxicity of exhaust gases. These include:
- onboard diagnostic system (OBD system);
- engine management system (EFI system);
- recycling system (EGR system);
- gasoline vapor recovery system (EVAP system);
- forced crankcase ventilation system (PCV system);
- suction channel selection system (ACIS system);
- catalytic converter.
The specific type of systems used with the indication of the adjustment data is indicated on the engine compartment plates (VECI plate).