Bosch Pes4a Manual <DELUXE>

: Look for a scribe mark on the pump flange and a corresponding mark on the engine block. The pump shaft is usually keyed, but it can still be installed "180 degrees out" if the engine was not set to the correct stroke. Fine Tuning

The is a specialized mechanical in-line fuel injection pump commonly found in 4-cylinder diesel engines, such as the Mitsubishi G4D31T auxiliary engine . This pump is part of the legendary Bosch PE series, known for its robust "port and helix" design that provides high-pressure fuel metering essential for direct injection systems. Understanding the PES4A Technical Code bosch pes4a manual

| | Switch 2 | Switch 3 | Switch 4 (MSB) | Assigned Zones | | :--- | :--- | :--- | :--- | :--- | | ON | OFF | OFF | OFF | Zones 5-8 | | OFF | ON | OFF | OFF | Zones 9-12 | | ON | ON | OFF | OFF | Zones 13-16 | | OFF | OFF | ON | OFF | Zones 17-20 | | ON | OFF | ON | OFF | Zones 21-24 | : Look for a scribe mark on the