GF14.30-P-4028D | Air shutoff valve position/task/function | 24.10.96 |
ENGINE 104.941 with CODE (491) up to Model Year 96 USA version
ENGINE 104.942 with CODE (491) up to Model Year 96 USA version
ENGINE 104.991 with CODE (491) up to Model Year 96 USA version
ENGINE 104.992 with CODE (491) up to Model Year 96 USA version
ENGINE 104.994 with CODE (491) up to Model Year 96 USA version
ENGINE 104.995 with CODE (491) as of Model Year 96 up to 96 USA version
ENGINE 111.961 with CODE (491) as of Model Year 94 USA version
15.03.07 | The document has been updated to this date and will no longer be subject to revision. |
P14.20-0251-05
126 Air shutoff valve
a From air pump
b To engine
c Vacuum connection
A Air shutoff valve open, secondary air injection operating
B Air shutoff valve closed
Position | Between air pump and cylinder head | ||
Task | Preventing air being inducted into the outlet passages, caused by the flow of the exhaust gases, when the air pump is switched off | ||
Function | The air shutoff valve is opened by vacuum through the air pump switchover valve (Y32). The injected air of the air pump is able to flow through. |