Opel 2.2 Direct engine Z22YH

In 2003 GM launched a new engine with direct fuel injection

The first application of gasoline direct injection was the Hesselman engine, invented by the Swedish engineer Jonas Hesselman in 1925.

Engine diagnostics with the OP-com device

Fuel pressure sensor on the rail

Fuel pressure regulator on the rail

High pressure fuel pump, the main problem

Solutions to replace the GM pump with other high pressure pumps