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The BMW Range
3 Series
erratic fuel gauge.. help
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<blockquote data-quote="jarance" data-source="post: 199166" data-attributes="member: 21"><p>aiyo, just measure the resistance when it is fully down and when it is fully up.</p><p></p><p>if the minimum is 40 ohms and maximum is 200 ohms, then 25% = 80 ohms, 50 % = 120 ohms , 75% = 160 ohms.</p><p></p><p>resistance value (%) = % x (resistance at max - resistance at min) / 100.</p><p></p><p>Another thing to consider is to compare the reading between the left and right sender. It should be about the same value for the same amount of deflection.</p></blockquote><p></p>
[QUOTE="jarance, post: 199166, member: 21"] aiyo, just measure the resistance when it is fully down and when it is fully up. if the minimum is 40 ohms and maximum is 200 ohms, then 25% = 80 ohms, 50 % = 120 ohms , 75% = 160 ohms. resistance value (%) = % x (resistance at max - resistance at min) / 100. Another thing to consider is to compare the reading between the left and right sender. It should be about the same value for the same amount of deflection. [/QUOTE]
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erratic fuel gauge.. help
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