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A. Positive crankcase ventilation valve (PCV)
B. Evaporative canister purge valve (EVAP)
C. Exhaust gas recirculation valve (EGR)
D. Thermal vacuum recirculation valve (EGR TVV)
E. Two way valve
F. Exhaust Catalytic Converter (for vehicles running on unleaded petrol)
G. Fuel vapor collection tank (EVAP)
H. EGR solenoid valve.