Most durametric posts never get any answers because most people have no idea what the values mean, myself included. However, the ignitions are explained on the Durametric website, and you can google those CEL code for more info. Not sure why the cluster has a different mileage reading than the car.
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1999 Ocean Blue Metallic Boxster - blueboxster.com
#of ignitions 1592/3561.7H (#2 was zero) no over revs
3675 Total hours
109477 miles
Average was 29.78 mph, based on the mileage and hours run
Instrument cluster total distance 14712? what?
Old codes before I reset them:
491 SAI below limit, bank 1,
492 SAI below limit, bank 2
and 420 catalyst efficiency below threshold (either bad cats or weak post cat O2 sensors...probably the latter)