Starting Troubles when hot

[Renault_Boy01]

When my clio is hot and i try to turn on the engine it fires but doesnt start ... i have to try this 4 times and with a bit of throttle it eventually starts.. what could this be

thanks
Tom

 

[edde]

Dirty throttle body
Spark plugs dirty
Temperature sensor faulty
Map sensor
Air temp sensor.

 

[JAY172]

tdc sensor