Technical blog

Diagnostics, repairs, and tips for diesel fuel injection systems

PSG16 and PSG5 Pump Controller Repair: Symptoms, Causes and Electronics Repair Process

Engine stalls, will not start or enters limp mode? The cause may be a faulty PSG injection pump controller. See how we diagnose and repair it at Diesel Serwis in Gliwice.

Bosch Common Rail Injector Rebuild: Symptoms, Diagnostics and Test Bench Verification

Smoke, jerking, harsh combustion, high return flow? Learn how to recognise worn Bosch common rail injectors and how a rebuild with test bench verification is done at Diesel Serwis, Gliwice.

Bosch VP44 Pump: Failure Symptoms, Causes and Step-by-Step Rebuild

Engine stalling when hot, loss of power, limp mode? Learn how the Bosch VP44 injection pump works, how to recognise a fault and how a professional rebuild is done at Diesel Serwis in Gliwice.

Piezoelectric Injectors: How They Work, How They Fail, and How to Remanufacture Them

A complete guide to diesel piezoelectric injectors: construction, common faults, piezo actuator diagnostics, and the remanufacturing process at Diesel Serwis.