Hi everyone. Just to let everyone know finally we think we have solved the mystery of limp home mode and ecu fault code of p0520...the mechanic has had the tech guys on it and it seems 90% positive that the oil pump was failing after switching the oil censor and doing an oil change, the only problem oil pump has to be shipped from Italy coz fiat UK have non in the united kingdom and the bill is in the region of £800-1000..
Kind regards
Richj

Have him put a manual gauge on it to check?

How thick is the oil in the sump?

Is the pick up blocked/restricted?

D