about jumper wires
I was just watching the video about testing the fuel pump circuit, Paul mentioned that we could energize the fuel pump manually by jumping the load side of a fuel pump relay using a fused jumper wire. my question is, what sized fuse I need to use? how do you guys calculate that?
I tried to search the forum to see if someone else have posted this question before, but I couldn't find any.
thanks
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"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
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but in general, how can I calculate the size of the fuse that i need to use to jump different components?
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I=V\R
Or
Amps=Volts/Resistance
en.wikipedia.org/wiki/Ohm%27s_law
This is my favorite visual:
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"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
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V in our case is battery voltage
R is resistanse, what number to put here?
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Sako wrote: R is resistanse, what number to put here?
The total resistance of the component(s)/circuit in question, measured in ohms.
Disconnect/Remove all voltage from the circuit. With a multi-meter set to OHMs/Resistance, touch one lead to the power wire, and touch the other to the ground wire. Read the resistance. A "K" indicates KILO-ohms (ohm x 1,000). An "M" indicates MEGA-ohms (ohm x 1,000,000). OL Mega-ohms indicates an open circuit.
"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
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"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
Please Log in or Create an account to join the conversation.
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"Knowledge is a weapon. Arm yourself, well, before going to do battle."
"Understanding a question is half an answer."
I have learned more by being wrong, than I have by being right.
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Tutti57 wrote: Would you be able to check the fuse in the circuit and use one with the same rating?
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That was my thought. Work smart, not hard.
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If the fuel pump circuit has say a 10 Amp fuse in it the manufacturer chose a 10 Amp fuse then you should use the same. It will protect the
wire and if it burns open it is doing it's job protecting the wire to the fuel pump.
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