The ecu is a 5 minute job to take out and open up, prise out pad in dash where ecu hides, big philips screwdriver on the tabs at each end undoes the ecu, pull out slightly unplug pull all the way out, now remove the 4 top screws 1 in each corner, chip is in the corner can't miss it, the only one that is removable on a little holder affair, will have a label/writing on it.
tabetha