connect the two pins on the connector when the ign is on, that should clear it.
I guess you didn't read the post properly.....
"Short out the two right pins in the grey plug under your fuse box (in cabin) when you have the car switched to ON (but not started) Short the wires for 3 seconds (the CHECK ENGINE light will turn off while you are shorting them out). The CHECK ENGINE light will flash a series which will indicate a code -
LONG LONG LONG LONG LONG (pause) SHORT SHORT SHORT SHORT SHORT - indicates 55 which is ALL CLEAR. If it flashes 34 its Det sensor, 21 Ignition circuit and I cant remember the other 2 off the top of my head . To clear the ECU codes, short the wires out again while it is flashing the code. If you leave it flashing the code and then start the engine you will have an inbuilt LEAN/RICH
indicator that works off your O2 sensor (which must be warmed up before it will do it).