Warm Start Problems. '89 328 with cat. | FerrariChat
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Warm Start Problems. '89 328 with cat.

Discussion in 'Technical Q&A' started by Hardin, Aug 7, 2008.

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  1. Hardin

    Hardin Rookie

    Aug 7, 2008
    1
    #1 Hardin, Aug 7, 2008
    Replaced fuel pump and accumulator but still have problems with warm start! Gives the distinct impression that flooding is occuring but no strong smell of fuel. Exhaust "vapor" discharge when cranking. Play the throttle and keep cranking and EVENTUALLY, she fires into life! Dead cold start no problems at all. Embarrasing when filling with gas and very stressful not knowing if the engine will fire or not. Had the problem the other day and just would not start. Disconnected Cold Start injector and DID start but I think THATcould have been just a bit of good luck!
    Could I have a problem with the Thermo-Timer switch although I have checked at the injector connection and THAT switch is off when the engine is warm?
    ANY suggestions would be appreciated.
     
  2. jwise

    jwise Formula Junior

    Apr 2, 2003
    781
    Portland Maine
    #2 jwise, Aug 8, 2008
    Did you run a hot/cold fuel pressure test before replacing the pump and accumulator? If not, that's what I would do next. And, have the injectors cleaned/replaced- a leaking injector could cause a warm-start issue. Cleaning the injector is a good thing to do anyway, and you can check the spray pattern and pressure holding ability (no drips of fuel) at the same time.

    When you replaced the pump, did you also replace the check valve? It could be that also.
     

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