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Car model: 12/1991, M70, M1.7 ECUs driven BMW 8 Series 850i Symptom: runs only on bank 2 and even on this bank it idles rough, it is impossible to rev it up because once you reach approx. 1500 rpms it dies. After ignition on, EML light goes off within 2 seconds. When I unplug MAFs, the engine won’t start at a...
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