Hi I have a problem with my Honda Civic 03 1.4, number 3 injector is open all the time. Have changed the ecu, key reader and key , and now the immobiliser is flashing in green on dash board and will not start. re chipped the new key still will not start. So then I put the old ecu and key reader back on car and it starts first time and obviously still misfiring.

Hope someone can help