Advise vw 2.0fsi immo

[Mr Mo]

Guys hope all good I did an immo off on a vw passat b6 2.0fsi car starts runs but after switch car off and leave for 3 hours car doesn't start I need to remove the ecu and rewrite the immo file again it's happening twice now any advice please

[rafal]

make good diagnostic of car

[Mr Mo]

I did immo fault but if I reprogram eeprom car starts again

[rafal]

I did immo fault but if I reprogram eeprom car starts again

then change ecu.......................

[Mr Mo]

then change ecu.......................
Thanks rafal ecu neva had an issue b4