Hi All recently bought a manual 360, drives sweet as anything, and then seems to over heat or something with the exhaust and runs in limp mode, 4 cyclinders. I have changed the below Oxygen sensors Lamba Sensors CAT ECU both sides when holding the revs firm at 1600, it also wanders searhcing 1300-2000 for 10-20 seconds sweet as anything then light comes on and going into limp modeThe lambo sensor readings are on and oiff when hooked up, dont know if this is normal I had the same problem on a 355 i had and ended up beign the CAT ECUs but this isnt solving the issue
Right Bank Motronic Bosch Engine Management System 7.3.1 - Recovery (NCMR2) 2 problems exist 1.020d1454 Please Refer To Manual! 2.020d1449 Please Refer To Manual! Left Bank Motronic Bosch Engine Management System 7.3.1 - Recovery (NCML2) 2 problems exist 1.P1454 Catalytic Convertor Protection Activation (B2) Present 2.P1449 Catalytic Convertor Temperature Out Of Range (B2) Absent The following systems are OK: 1.Left Bank Motronic Bosch Engine Management System 7.3.1 (NCML1) 2.Roof Module CTS (CAP) Basically, the first two seem to be a repeat of the second two. Could it be a Motronic ECU issue? Or even a real cat issue? You can buy dummy ECUs from Technistrada to simulate good cats/thermocouples/thermocouple ECUs. i.e. use them as diagnostic tools https://technistrada.com/dummy-load-sdl-bypass---not-for-installation-into-vehicles-equipped-with-catalytic-converters Or you could make one yourself with a diode and a resistor: https://www.ferrarichat.com/forum/threads/simple-2-7-slow-down-ecu-replacement-only-for-no-cats.538719/ ...but it depends on which model 360 you have. If it's a later model, it may not work.
There are only two error codes: P1454 and P1449, both affecting Bank 2. You are having a real problem with bank 2 running too rich and then shutting off. Your second video showing the real data using the Launch X431 is ... useless because the X431 is useless when it comes to fuel trim and real time data display. I have 3 suggestions: 1. Find another scanner that can read real data correctly. 2. Find what the fuel trims (Short term and long term) are on both banks 3. Get a laser thermometer and confirm that the temperature of the cat converter bank 2 is really hot, and much hotter than that of bank 1. The fuel trim will confirm a rich running condition likely because there is an exhaust leak downstream near the O2 sensors. It could also be a leaking fuel injector on bank 2. But more data will help.
