I have a CAT that seems to be having issues (or maybe the O2 sensor). It trips a CEL once in a while - maybe once a month or two or three. Anyway, after a few trips, it resets and the CEL goes off - until the next time. But I don't want to miss an important (or just another) CEL in the meantime, and the car will be in the shop to fix the offending part soon enough anyway. So I decided to get a code reader to check the code when it happened, so I don't have to run to the dealer every time. If it's the same code as always, I want to reset it. So, I got a Cen-Tech 94217 Code Reader at Harbor Freight (http://www.harborfre...temnumber=94217). This appears to be a rebadged Autel Geniscan GS400 (http://www.auteltech.com/gs400.htm). Everything is the same, right down to the manual. Now the kicker, it accesses the car, reads the codes and displays them. I had a P0420 code. BUT, when I try to erase the code, I get an "Erase Failure!" message. I'm guessing that this is the reader, and not a Porsche specific issue. Any thoughts? -td MY00 C2 Coupe Appears to be DME 7.2
Edited by td873, June 19, 2008 - 09:26 PM.