RICIRCOLO GAS DI SCARICO ( E.G.R.)                                                 a                                                                                                                                                                

 

 

 

 

 

 

 

 

 

 

 

 

 

          1) elettrovalvola E.G.R.
          2) valvola E.G.R. pneumatica
          3) pompa del vuoto
          4) centralina