| No. | Name
        
       
       
        
         location | Illus. | 
     
      |  | Components |  | 
     
      | 44 | Pressure switch, engine oil,
       
       
        under the generator |   | 
     
      | 178 | Knock sensor
       
       
        
         component:
        
        in the centre of the rear long side of the engine
       
       
        
         connector:
        
        on the engine control module |   | 
     
      | 202 | Coolant temperature sensor,
       
       
        on the engine's top right front corner |   | 
     
      | 205 | Mass air flow sensor,
       
       
        integrated in mass air flow sensor 686 |   | 
     
      | 229 | Main relay, engine control system
       
       
        in main fuse box in engine bay |   | 
     
      | 243 | Engine oil level switch
       
       
        at the bottom of front edge of the oil pan |   | 
     
      | 271 | Heated oxygen sensor element,
       
       
        integrated in the oxygen sensor |   | 
     
      | 342 | Underhood Electrical Centre (UEC)
        
       
       
        next to the battery | 1 | 
     
      | 345 | Crankshaft position sensor,
       
       
        under the oil filter |   | 
     
      | 407 | Intake air temperature sensor,
       
       
        integrated in mass air flow sensor 686 |   | 
     
      | 555 | Camshaft position sensor
       
       
        
         component:
        
        on the right of the engine's short side at the camshaft gear
       
       
        
         connector:
        
        to the right on the engine at the end of the cable duct |   | 
     
      | 592 | Front heated oxygen sensor,
       
       
        
         component:
        
        on the catalytic converter
       
       
        
         connector:
        
        on a bracket at the oil filter |   | 
     
      | 593 | Rear heated oxygen sensor,
       
       
        
         component:
        
        on the exhaust pipe behind the engine
       
       
        
         connector:
        
        on a bracket at the rear centre of the engine |   | 
     
      | 686 | Unit, mass air flow sensor
       
       
        in engine bay at right-hand MacPherson strut tower |   | 
     
      | 705 | Control module, Simtec
       
       
        at the top of the left end of the engine | A
        
       
       
        
         B | 
     
      |  | 10-pin connector |  | 
     
      | H10-15 | At the top of the engine's short side (left) |   | 
     
      |  | Crimp connections |  | 
     
      | J231 | Approx. 80 mm from branching of connector H10-15 towards the battery |   | 
     
      | J241 | In engine cable duct at injector for cylinder 2 |   | 
     
      | J247 | In engine cable duct at injector for cylinder 3 |   | 
     
      | J248 | In engine cable duct between injectors for cylinders 2 and 3 |   | 
     
      | J249 | Between the cable duct and engine control module |   | 
     
      | J250 | Between branching of front oxygen sensor and first cable tie towards engine cable duct |   | 
     
      | J251 | Between branching of camshaft sensor and first cable tie towards oil pressure sensor |   |