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UPDATE

So after a month of replacing the Evap solenoid with a Bosch brand replacement, I have no more start issues.

Testing the part was easy by just blowing in the side of the valve and noticing that it leaked air. The new part did not allow any air to pass through.

Solved!!!
Big thanks for ...

**UPDATE**

I removed the Evap solenoid valve yesterday, gave it a few taps on a table and some black soot came out. Decided to refit while I wait for the part to arrive and started today in extremely hot weather and it started first time.

Will keep monitoring and testing daily on hot weather to ...

I have reviewed the links you've sent with the SEAT forum and will start with the Evap solenoid valve as it is less invasive lol. I will keep you updated on the progress

My 6R 1.4 has decided it doesn't want to start in warm weather. If it's parked in the garage in summer which tends to be humid, the engine turns over but does not start.

Usually if I floor the gas, it will eventually start and after this it starts pretty easy.

I've read multiple threads on ...

ciclo, there have been quite a few cases where intermittent poor starting has been due to a defective fuel pump relay, well on the Ibiza forums. I have asked the question about when this starting problem occurs as there is another problem turning up with these engines but only usually only when ...