| Checking needle lift sender |
| The needle lift sender signal is used to determine the commencement of injection. If it fails the commencement of injection switches to openloop control (according to engine speed and engine load). During normal operation the commencement of injection is controlled by a closed-loop function (according to engine speed, engine load and temperature). |
| Special tools and workshop equipment required |
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| Hand multimeter -V.A.G 1526- or multimeter -V.A.G 1715- |
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| Adapter set -V.A.G 1594- |
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| Test box -V.A.G 1598/22- |
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