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X6m Injector or ECU problems?
I have this x6m for about 6 years, only has 36k km on the clock, but it has been giving so many issues. The first set of issues were misfires from random cylinders. I brought it to the dealer and they replaced 3 injectors, 8 plugs and 8 coils. Worked for awhile then same issue came back until i took it into my own hands and purchased 6 injectors and 8 coils and plugs and compensated them last week using Ista and worked flawlessly.
Yesterday morning I went to start the vehicle in the morning, and then in the evening started again just to hair misfires like I never heard before (NO CEL)
I found these codes: 30BC Injectors x,y,z or Dme, internal failure and 30BD with the same description. Also another code was 2f1e LIN?
Through my troubleshooting I found out that Injectors #3,4,7,8 were not functional or deactivated.
I cant come to a conclusion because of a number of possibilities: 1. Engine wiring 2. Injectors (I highly doubt 4 will fail at once) 3. ECU Programming or 4. ECU itself.
Can somebody please help?
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