Starting problem when engine is hot

2009 NISSAN TIIDA
210,000 MILES • 1.6L • 4 CYL • AUTOMATIC
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MOHAMMED ALI SHAHAN
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My Car starts good in the morning when engine is cold.
Then after 1 hour drive when engine became hot than takes a long time to start. It takes ten cranks.
Sep 22, 2020 at 9:49 AM
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KASEKENNY
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The most likely cause of this would be fuel pressure. Let's start with checking fuel pressure when this is acting up.

Also, how long does it take before it starts normally? Do you have to wait until it completely cools down before it will start quickly again? Meaning once it is hot, it will long crank every time until it is cooled down?

Lastly when this is happening, can you cycle the key 3-4 times without cranking the engine leaving it in the on position for about 3 seconds each cycle, then crank the engine. Does it start like normal or does it long crank again?
Sep 22, 2020 at 5:05 PM
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MOHAMMED ALI SHAHAN
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It's not working.
Sep 22, 2020 at 11:37 PM
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KASEKENNY
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You mean cycling the key a number of times is not causing it to start normally? If that is the case, it may not be the pump but it could be a leaking injector that only acts up when it is hot.

We can confirm this with checking the fuel pressure. Let me know if you can do this when it is hot. Thanks
Sep 23, 2020 at 6:22 PM
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MOHAMMED ALI SHAHAN
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I change the fuel injector, fuel pump, cam and crank sensor and spark plug.
Sep 24, 2020 at 6:34 AM
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MOHAMMED ALI SHAHAN
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But still problem when engine hot.
Sep 24, 2020 at 6:34 AM
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KASEKENNY
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Can you get two things? First, we need the fuel pressure when this is long cranking?

Second, can you get a video of how long it takes when this is hot? Thanks
Sep 24, 2020 at 7:09 PM