Herbert Graf wrote: >> It may be a separate module that does the throttle control, to the >> module that does the engine management, but I suspect they are all >> inside the same box (but I haven't looked under the hood of a Volvo to >> find out) ... > > I doubt that very much. > > It's very common on cars that each "feature" has it's own "computer". > I'd personally be surprised if a throttle by wire feature was contained > in the main ECU. It takes quite a while for the auto industry to > "integrate" separate modules. IIRC, the Corvette's throttle control is handled by the ECM. Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist