A simple reflash is not so simple. The one guy who's even close to modifying the program in Bosch / Siemens OBDII systems is Jim Conforti, and I'm not sure he can get the stock ECM to ignore the kind of faults that a disconnected CAT or wheel sensor will trigger. The probelm is that the program is Proprietary to Bosch/Siemens and they're not about to share the secrets, and it's designed to be tamper proof. Some ecm's require removal and being sent in to be reflashed like the Motronic M-42, and even then some months are not reflashable. So you send in your ecu to only find out that nothing can be done to it. Even if it is reflashable all that's really done is to remove the top speed limiter or maybe tweek the timing 2 degrees a sort of one size fits all approach. The shark won't make it ignore these kinds of faults, only a new standalone will do, now will or can it be stuffed into the stock housing?

James