June 17, 200818 yr Knock sensor is located below the lower plenum at the back of the engine, inbetween the heads. The wire comes from the knock sensor up to a grey 2 pin plug at the back of the engine which will be near the firewall inline with the centre of the plenum. It only has 1 wire going to it from the knock sensor. It then joins the rest of the EFI loom to the ECU.
dose anyone have a pic of where the knock sensor wire gose to