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Porsche 914 1.8L Fuel
Injection Diagram

Pete Klager

FRONT TRUNK LAYOUT
From                    To                      ID      Length          Notes
----                    --                      --      ------          ----
Expansion Tank          Plastic Vent Line        5 mm    4 inches
Tank (Rear Line)        Fuel Filter inlet        7 mm   22 inches       1
Fuel Pump outlet        Firewall                 7 mm   24 inches       2
Firewall                Tank (Front Line)        7 mm   16 inches       1
Fuel Filter outlet      Fuel Pump inlet         12 mm   17 inches       1,3



FUEL HOSE LAYOUT
From                    To                      ID      Length          Notes
----                    --                      --      ------          ----
Fuel Supply Line        Right side fuel rail    7 mm    14.5 inches     2
Right side fuel rail    Cold Start Valve        7 mm    14.5 inches     2
cold Start Valve        Left side fuel rail     7 mm    19 inches       2
Left side fuel rail     Fuel Pressure Regulator 7 mm    5 inches        2
Fuel Pressure Regulator Fuel Return Line        7 mm    36 inches       1
fuel rail               injector                7 mm    2.5 inches      2
                                                        (4 required)

VACUUM HOSE LAYOUT
From                    To                      ID      Length          Notes
----                    --                      --      ------          ----
Throttle Body (rear)    Plastic Tee (rear)       4 mm   11 inches
Plastic Tee (front)     Dist. Vac. Adv. (left)   4 mm   10 inches
Plastic Tee (right)     EGR Valve                4 mm    7 inches
Throttle Body (front)   Dist. Vac. Adv. (right)  5 mm   22 inches
Intake Air Distributor  Plastic Tee              5 mm   13 inches
Plastic Tee (left)      Fuel Pressure Regulator  5 mm   24 inches
Plastic Tee (right)     Decel Valve              5 mm   15 inches
Charcol Canister        Plastic Vent Line        5 mm    3.5 inches
Charcol Canister (rear) Fan shroud (right)      12 mm   17 inches       4
Charcol Canister (frnt) Air Cleaner             12 mm   39 inches       4
Intake Boot "Y"         Aux. Air Regulator      12 mm   13.5 inches     4
Aux. Air Regulator      Intake Air Distributor  12 mm    3 inches       4
Decel Valve (center)    Intake Air Distributor  14 mm   19 inches
Decel Valve (side port) Intake Boot "Y"         18 mm   26 inches       
Oil Filler              EGR/Oil Metal Line      21 mm    4.5 inches


Totals:
-------
 4 mm ID Vacuum Hose    28 inches
 5 mm ID Vacuum Hose    81.5 inches
 7 mm ID Fuel Hose      74 inches
 7 mm ID High Pressure  87 inches
         Fuel Hose  
12 mm ID Fuel Hose      17 inches
12 mm ID Vacuum Hose    72.5 inches
14 mm ID Vacuum Hose    19 inches
18 mm ID Vacuum Hose    26 inches
21 mm ID Vacuum Hose    4.5 inches


Notes:
------
1  high pressure hose can be used
2  must use high pressure fuel hose
3  7/16 inch (11.1 mm) fuel hose can be substituted
4  1/2 inch (12.7 mm) heater hose can be substituted

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