Originally Posted by TheEugeneKam
The car now doesn't start. Engines turns over but nothing happens. Test mode is not working either, the check engine light does not flash when green cables are connected. The ap is not finding ecu with or without test mode.
It sounds like you have a major issue with the car itself. The AccessPORT install itself will not cause misfires (neither will any of the off-the-shelf maps).
Had anything changed since before the car wouldn't start? I would try a hard reset by disconnecting the negative terminal of the battery for 10 minutes (and then re-connect).