Relevant DTC, relevant LOG recording and fault diagnosed in 35 minutes

Doposud provedeno bez úspěchu

Two months ago the following messages appeared "Reduced engine power" and "Visit the workshop".
At the same time, a DTC P0101 is stored in memory.
The workshop diagnosed an over-saturated DPF filter.
The filter was cleaned and returned back to the vehicle including the appropriate ECU reset steps.
The invoice included a remark that the turbocharger should be replaced - oil in the filter.
The workshop confirmed that the vehicle is driveable but should make an appointment in another workshop to have the turbocharger replaced. After about 15 km of city driving during acceleration when exceeding 80 km/h the vehicle went into Limp Home mode. The same messages, DTC and DPF warning light activated. The engine started to emit heavy black smoke.
The customer drove home a further 5 km in the Limp Home mode.
He contacted the DPF cleaning company to complain and they responded that they told him to have the turbocharger replaced and that he damaged the vehicle himself so they cannot accept responsibility.
Turbocharger replacement was ordered in another workshop where they discovered that the DPF filter is completely burnt out. This is only after about 50 km!
New OEM DPF filter is in the range of 3 300 to 4 900 Euro.
In the end, a good OEM used filter was sourced in Belgium for about 480 Euro.
The vehicle was towed to yet another workshop to have the used filter installed, cleaned before, using a dry cleaning method.
After about 5 km after leaving the workshop the same messages with reduced engine power and during acceleration heavy black smoke.
The owner called 8 Chevrolet workshops and was refused in all of them because:
A) they are not going to repair a vehicle after somebody else working on it
B) they do not have the required diagnostic Scan-tool for this specific vehicle