Zackh99 Posted September 2, 2021 Share Posted September 2, 2021 I am having a problem with my 93 sc400 in the morning when it has been sitting for a while it was start up just fine and run great but if I shut it off when it's warmed up and then try to start it back up it won't turn over does anyone have any idea what that could be Quote Link to comment Share on other sites More sharing options...
RX400h Posted September 3, 2021 Share Posted September 3, 2021 The cold starting issue could possibly be caused by a failing fuel pump, fuel injector, or temperature sensor. Heat increases resistance in electrical circuits, and it is possible that once the fuel pump has been running for a while, high resistance causes it to slow or stop. The same high resistance can affect ignition components. Make sure all of your electrical connections are clean and secured. Quote Link to comment Share on other sites More sharing options...
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