VF7**************[VIN obfuscated, can be read by forum staff]
The problem appears from time to time, so it is not always.
Susoectez ecu. I had a similar problem with the ecu on the c3 from 2002, the ecu does not correctly adjust the regulator on the high pressure fuel pump and the same only sometimes.
Symptoms: heavy acceleration
Strong vibrations
Check engine on
