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The BMW Range
5 Series
E34
E34 520i - Parts Help Needed
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<blockquote data-quote="jarance" data-source="post: 70493" data-attributes="member: 21"><p>zack, there seem to be three wire from the level sensor. You are testing only the main sensor. I think there is another terminal that you also have to check for the reserve tank indication.</p><p></p><p>When you plug in the connector, there should be a 12VDC supply on one of the terminals. Check for this supply.</p><p></p><p>Did you plug in the connector and switch on the ignition (without starting) and slide the float up and down slowly to check the fuel guage. It should response to the change of resistance.</p><p></p><p>If it does not, then the guage for the fuel sensor is most probably faulty.</p><p></p><p>To check the fuel guage, open the instrument cluster and check the resistance across the coil of the fuel meter. There should be some resistance reading.</p></blockquote><p></p>
[QUOTE="jarance, post: 70493, member: 21"] zack, there seem to be three wire from the level sensor. You are testing only the main sensor. I think there is another terminal that you also have to check for the reserve tank indication. When you plug in the connector, there should be a 12VDC supply on one of the terminals. Check for this supply. Did you plug in the connector and switch on the ignition (without starting) and slide the float up and down slowly to check the fuel guage. It should response to the change of resistance. If it does not, then the guage for the fuel sensor is most probably faulty. To check the fuel guage, open the instrument cluster and check the resistance across the coil of the fuel meter. There should be some resistance reading. [/QUOTE]
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E34 520i - Parts Help Needed
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