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Old January 17th, 2012, 08:14 AM   #17
offshore
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Join Date: Jul 2009
Location: Pacific Grove, CA
Posts: 926
There is an issue with some Boxster fuel gauges that has been discussed here and on other forums. My fuel gauge never read full even after topping off, which is not recommended, but my tank takes another two gallons of gas after clicking off. I replaced the sending/float unit and had the PS2 calibration done, which involves more than just hooking the computer up. The tank has to be drained and a set number of gallons of gas have to be put back in the tank then the computer calibrates. The whole process set me back around $700 and my gauge still goes not read full so go figure. I would think that calibrated or not your red low fuel warning light would come on, mine did before and after the calibration process.
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