Quote:
Originally Posted by particlewave
My guess, sending unit is sticking or worn.
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Yes that or if battery power is lost it can lose it's calibration. I don't know how it can be recalibrated without determining current fuel level.
In 2004 I was running time trials at Streets of Willow in my 2000S, my engine slowly lost power & stopped. I believe the gas gauge showed about half full. I thought it was an electrical problem but gave up & had it towed to Pacific Porsche. They replaced fuel sending unit & recalibrated after adding $10. gas Total charge $ 560. sending unit was $175 part# 996-620-808-00.