hello! I has the same problem with t-jet. Very bad cold start with 3-5 even 6-7 attempts!
I check all temperatures from ECU and fuel preassure – all OK. Then I checked crunkshaft sensor resistence – 885 omh.
Also I closed evaporation valve and reset self-adapt. parameters in ECU. – In the morning engine started from same 4 attempt((
Please help me with some recomendations – what I should do next?