Yes, as with anything built by man, it can fail, very rare though.
You'll need a code scanner that has that option built in.
the last 4 numbers
How i reset the computer on Honda civic ex 2.000
If a Honda Civic is over revving than there may be a problem with the ECU. One of the functions of the ECU is to prevent the engine from over revving.
what are the wires to power up the ecu on a 1994 Honda civic si
in the ecu
The main chip of a 1995 Honda Civic is found inside the ECU. The chip is clipped on, on the upper left side of the ECU.
its behind the glove box, i think its a 10 mil but your gunna need a long exstention.
behind the passenger side kick panel
In a 1990 Honda Civic, the Engine Control Unit (ECU) is typically located under the dashboard on the driver's side. You can find it mounted on the side of the dashboard, near the left kick panel. To access it, you may need to remove a few panels or covers. Make sure to disconnect the battery before handling the ECU for safety.
For an OBD2-b (1999+) civic, the TCU is built inside the ECU.
Passenger side bottom right next to the door