There is a recessed knob ( triangular from memory) on the side of the ecu under the passenger seat. Try unscrewing the ecu from the floor, unplugging the ecu from its cable and retard the fuel mix by turning the knob a couple of turns then replace the ECU. ( sorry cant remember if its clockwise or anti) Trial and error.
Remember and disconnect the battery before taking out the ECU
thanks for the replies, I tried lubricating the throttle and thought I had cracked it, but when the engine is up to temperature it starts again, going to go down the air leak road. :thumb: