Thread: Speedometer Error
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Old 06-29-2012, 01:16 AM   #28
Dave928
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Join Date: May 2009
Location: Seattle - It's not Hell, but you can see it from here!
Posts: 236
+4 MPH at all speeds. matched it to a roadside radar sign and a scan tool with live data.
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dave

2001 Porsche Boxster S
1988 Porsche 928 S4
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