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Testing the fuel gauge
#1
Does any one know how to short the fuel gauge? I'm trying to determine if its the gauge or the wiring that is bad. I have already verified that the IVR is working.
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#2
just ground one of the wires, and if the guage goes slammed to the right, then its g2g!!!
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#3
do I ground the wires at the Tank?

Eric


[Image: a58hgh.jpg]
DRIVE IT DON'T STORE IT!
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#4
the body is ground, so jump a wire to the tank itself you could also jump the connector with a paper clip.
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#5
That would check itall the way back.
Jump it across at the tank. This will test wiring and gauge all at one time.

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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#6
I unplugged the connector and used my test light. I put the alligator clip in one side of the connector and the needle in the other side. The test light was flashing. I asked my girlfriend to check if the needle went to full and she told me it only moved to E. So basically it moved from below E to E about 1/8 of an inch.

That is what it does most of the time. Sometimes it might go to 1/4 and it went to 1/2 a few times. Does this sound more like a gauge problem rather than sending unit.Huh

Eric


[Image: a58hgh.jpg]
DRIVE IT DON'T STORE IT!
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#7
O.K. I'm assuming ignition was on due to flashing test light. 2 questions, 1. How much gas is in the car?. 2. Is light flashing constantly or just once in a while while your moving the lead?

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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#8
Does your test light have an incandescent bulb or an LED? The LED will not act as a near short as an incandescent bulb would. If you use a jumper wire don't leave it connected very long as it will cause more current to flow through the gauge than it is designed to carry. The minimum resistance the circuit is designed to se is 8-10 ohms. Some Radio Shacks still carry inexpensive 10 ohm resisitors. Let us know what you find. Chuck
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#9
the light seemed to flash at regular intervals the car was pretty low on gas but I assumed since the connector was not on the tank the amount of fuel didn't matter.

As for my tester It was not led

Eric


[Image: a58hgh.jpg]
DRIVE IT DON'T STORE IT!
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#10
It's either wire or gauge. If you have the schematic for the gauge, Find the wire underthe dash and do the same test with your test light should run along the floor and up to the gauge cluster. Leave the wires disconnected at the tank. Don't skin the wire just penetrate it with the test light point with the other end to ground and see if it does the same thing. If it does, odds are you have insulation broke down in the wires in the cluster going to the trunk. Let us know.

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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