| Inspecting the camshaft position sensor -G163- |
| The camshaft position sensor -G163- indicates the ignition position for cylinder 1. |
| If it fails the knock control is deactivated and the ignition angle is slightly reduced as a cylinder assignment is no longer possible. |
| Without sensor signal the engine runs on and can be started again: |
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| In the event of a fault detection the engine control unit generates an ignition spark per cylinder for each crankshaft rotation. |
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| There is no noticeable effect on the injection if there is a displacement of an engine revolution. Instead of occurring with the injection valve open the injection occurs "pre-engaged" (before the closed injection valve). This only has a very slight influence on the quality of the mixture formation. |
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| The camshaft position sensor -G163- is identical to the Hall sender -G40-. |
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| The correct setting of the timing can be checked in measured value block 012 → Chapter 01-5. |
| Special tools and workshop equipment required |
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| Hand multimeter (e.g. -V.A.G 1715-) |
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| Adapter cable set (e.g. -V.A.G 1594 A, B oder C-) |
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| Test box -V.A.G 1598/31- |
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