User Manual

Chapter 12

BOSCH HDI EDC 15C2 INJECTION SYSTEM AND PARTICLE FILTER

Conditions allowing exhaust gas recycling:

• engine speed greater than 725 rpm,

• low engine load,

• coolant temperature (ECU cartographic map) / air temperature (ECU cartographic

map),

• regeneration assistance not active.

Conditions prohibiting exhaust gas recycling:

• full engine load,

• engine speed greater than 2650 rpm,

• altitude above 1500 m,

• coolant temperature above 105°C,

• regeneration assistance active.

Throttle housing (EGR):

• in addition to the recycling valve, the throttle housing, depending on its position, is

used to improve exhaust gas recycling,

• the throttle housing is controlled progressively and using a cartographic map

(injection ECU).

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