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1990 944S2 Warm Start Difficulty

  • 1990
  • 944 S2 Cabriolet
Mileage: 
100 300
Engine
Manchester, 
New Hampshire

1990 944 S2 Cabriolet will not start when warm.  Starts perfectly when cold and runs beautiful.  As soon as engines warms up, will not warm start.  Engages and shuts down, after continued start attempts will hunt for 15-30 seconds.  With continued attempts, will hunt then all cylinders engage and engine runs perfect.  I believe it may be electronic as all componants effecting the fuel rail have been changed.  New componants:  Fuel pump and check valve; Fuel pressure regulator; Fuel pressure Damper; Fuel Injectors; Engine Temperature sensor; Ignition control module.  Removed the Air Fuel Monitor and cleaned the plug-in terminals.  Any advice would be appreciated.  Thanks

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