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In desperate need of wiring diagram


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Hi,

2005 Boxter gas gauge stop working. The tank is full but the gauge reads empty and low level light is flashing.

The car was at a shop (not dealer) for DDL light install and since then these issues have surfaced.

Does anyone have a gas tank wiring diagram?

There is a larger gauge brown, green/black and small purple, purple/black

i'm interested in tracing the wires from the boot to the interior hopping that the wire colors are the same across the grommet through the firewall.

Any help is greatly appreciated.

Edited by quietcoolone
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The fuel gauge is part of the instrument cluster - so there is no separate diagram.

Have you checked the cluster to see if any other gauges are off? Check the cluster fuses?

 

Or, you could have a stuck fuel level tank sensor.

Loren,

Thank you so much

no other gauges are off-- the gas gauge was stuck on 1/4 but tank was almost full, -- went to gas station added about filled it up -- gauge went up to 3/4 and red warning light continue flashing. A few days later the gauge is back down to 1/4. I wanted a wire diagram to figure the function of each of the 4 wires comoing out the tank.

Edited by quietcoolone
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Violet/Violet goes to the instrument cluster.

Brown/Violet goes to the instrument cluster.

Brown/Brown goes to ground.

 

If the connections are good and you have a good ground it is likely you have a sticky level sensor.

thank you.. i will try to trace these wires between from boot through firewall ..

Will post back when resolved.

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