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Cold Start Injector: BMW

  1. With ignition off, disconnect electrical connector from cold start injector. Release pressure from fuel system and remove cold start injector with fuel lines connected.
  2. Place container under injector. Disconnect air flow meter electrical connector and connect jumper wire between terminals 36 and 39. Connect another jumper wire between cold start relay terminals 87 and 30. Turn ignition on. Cold start injector should spray fuel. If not, replace cold start injector.
    NOTE: On 528i models, connect lead 61 1 440 to cold start injector, then connect terminal "B+" to ground after jumping air flow meter connector.
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