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Old 10-26-2012, 12:44 PM   #13
Registered User
Join Date: Aug 2009
Location: Ontario Canada
Posts: 700
My Ride: 1999 328i
I would definitely do it with the engine off to be on the safe side. I'm not sure if it got screwed up because I did it with the engine running or if my cable dropped out mid-clear and corrupted data that way. Either way, theres no reason to do it with the engine running, so I would avoid it.

1999 BMW 328i (Daily Driver) - m54b30 intake manifold, ebay headers, Rebirth Motorsports CAI, Rogue Engineering underive pulleys, Epic Motorsports Remote Dyno Tune, Custom 3 inch exhaust with Burns Merge, Schrick 264/248 Cams
jared_wiesner is offline   Reply With Quote