Originally Posted by
NomakeWan
Under the lid is the knock module, which is a frequency filter and signal unit for the PCM. Basically the knock sensors send their signal to the knock module, which filters the signal based on a predetermined range programmed into the module, then signals the PCM if it detects knock.
The pre-96 PCMs used a single knock sensor wire and used knock sensors with a built-in resistor to determine if the sensor(s) were in place. The resistor will commonly go bad without the actual sensor going bad, which can cause a knock sensor fault code. The '96-'97 PCMs used two knock sensor wires and knock sensors from the C3 Corvette without the resistor; they determine whether or not the sensors are working based on whether or not a sane signal is actually being received.
Keep the knock module that was associated with the vehicle you actually own. If the old PCM was the correct one for your chassis and engine combination, put that module into the new PCM.
As for your error, steveo will have to chime in probably; it may have to do with you flashing on a bench instead of in an actual car. It looks correct to me however, I'd say you're probably fine.