Hi all
Have above vehicle in at the mo, intermitent non start when cold. Fault coded engine management but no fault code, also fault coded bcu 1 fault
U2105 can-bus no communication with engine controller.
When vehicle wont start eng man light flashes really fast and no comm with engine ecu. Checked all power supplies and earths all good, im thinking it could be an ecu fault but not sure. If i keep turning ign on and off a few times it eventually starts. Has anybody else come across a similar fault or any thoughts?

Regards Jamie