hi all new to the forum, i have a problem with my 2.2cdti don't want to start p0193 code reading , i have unplugged sensor on the end of rail and shows the same code even when cleared . Have cleared code 5 times to no avail , still shows same fault ,reconnected sensor still same fault . Looked on forum which says to link out pins 2 and 3 for 30 secs and should clear . Fault code comes straight back on with ignition . Would this be a ecu problem, car on 167k. Checked wiring for damage etc all looks fine . help appriciated