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1G emission controls and vacuum hoses elimination
 
 


Before:



Stock emission controls and vacuum hoses configuration as found on federal 1G turbo DSMs.
 
  After:


The WGS, EPS and TVV ports don't need to be plugged. However, plug the port of the evaporative canister hose on the turbo inlet hose after you remove the canister (not shown). The boost gauge may be ran off the "P" port of the throttle body or the FPS line.  
  "Race-only" setup:


The fuel pressure solenoid can be safely removed. Its function is to increase the fuel pressure on start-up by closing the vacuum path to the fuel pressure regulator which is suppose to prevent the fuel from evaporating when the engine is hot. This is not a problem when high volume fuel pump is being used or might take just a bit more cranking in case of completely stock fuel system.
 
  Crankcase ventilation system modification:



A straight fitting can be used in place of the PCV valve, or the PCV valve can be modified by removing its internals.  
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