Did you clean both sides of the contact surface. I think he means you should unhook the battery and then hook it back up to reset the computer.
I'll spoon feed this to you
1. Open your hood.
2. Disconnect the negative cable of the battery.
3. Remove the hush panel above the drivers feet. This is held in with the “Christmas Tree” like push retainers.
4. Under the dash, near the emergency brake pedal, you will see the back of the EEC. This is a silver box that is approx. 1.5” thick, 6” tall, and about 8” long. It is held in place with a plastic U shaped clamp. Just pull this clamp, it only slides on.
5. Now, grab the EEC and pull it down and it will come out. There is a metal plate the EEC sits next too, this is attached to the car.
6. Take the EEC apart. You need to separate the top and the bottom so you can clean the service port connector properly.
7. Take some 150 grit sandpaper and clean the contacts on the service port. IT IS VERY IMPORTANT THAT YOU BE ABLE TO SEE COPPER ON THE EDGE CONNECTOR.
8. Now, install the EEC, but do not put the cover back over the service port. You install the EEC in the backwards procedure that you removed it in.
9. Install the chip by slipping it over the edge connector. The connector on the EEC is offset from the center, so is the connector on the chip. Line these up so the chip fits over the back of the EEC and covers it.
10. Install the negative cable on the battery and start the car. If the car does not start or does not run right, it is most likely a bad connection between the chip and the EEC. This connection must be clean.
11. Install the hush panel back on the car.
12. Have fun