This is a common issue for some hotrodders needing to replace their old tired fuel tank sending units with a replacement and matching it to a fuel gauge they wish to use in their cluster.
Item #1 Fuel gauge - mechanical type with sweeping needle. The resistance range of the gauge is 30-240 ohms. At E (empty) the gauge expects to see 30 ohms and at F (full) it expects to see 240 ohms.
Item #2 Sending unit in tank - mechanical type sweeping arm with a dimmer-style wire coil and wiper. The resistance range of the sending unit is 2-36 ohms. Some are more like 0-30 if that makes much difference. When the sending unit is at empty it reads 2 ohms and at full 36 ohms.
Is there a way to match the two items so that sending unit's position will relatively match the needle position on the gauge value for value?
I have posted on this site's forum for several years and have performed hundreds of board level repairs. Thanks in advance
Item #1 Fuel gauge - mechanical type with sweeping needle. The resistance range of the gauge is 30-240 ohms. At E (empty) the gauge expects to see 30 ohms and at F (full) it expects to see 240 ohms.
Item #2 Sending unit in tank - mechanical type sweeping arm with a dimmer-style wire coil and wiper. The resistance range of the sending unit is 2-36 ohms. Some are more like 0-30 if that makes much difference. When the sending unit is at empty it reads 2 ohms and at full 36 ohms.
Is there a way to match the two items so that sending unit's position will relatively match the needle position on the gauge value for value?
I have posted on this site's forum for several years and have performed hundreds of board level repairs. Thanks in advance
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