Dgriff

Well, did some wiring checks...I wish I could say there was some logic to the erratic readings I got. High resistance short (3.5K ohms), open circuit to earth and then continuity returned, seemed to stabilise on 75ohms...?. Noticed I had continuity on a number of pins at the ECU. I need to chase a wiring diagram that I have buried somewhere to make some sense of it, mainly colour codes, but the scan tool is up and running. The culprit is a suspect K Line wire as it runs under the MEMS 3 ECU support plate NS passenger lip of engine bay. Continuity readings jumping around wildly while pushing and pulling on wiring in this area. Released trapped wiring and uncovered wrapping expecting to find damaged insulation etc on a number of wires. Cant say I found any external damage so I guess there is something amiss internally. With all the prodding and twisting it seems to have sorted my K line fault issues completely and I can interrogate all relevant areas of the ECU. I'm not saying its sorted but it does prove the working potential of a Monterey 12.1 MacBook Pro with Pscan installed. I will persevere and keep the thread updated as I go. Cheers to Pscan UK.