Bimmerfest - BMW Forums - View Single Post - please HELP!!!!!power loss in my 92 850i
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Old 03-12-2013, 07:41 AM
02540ico 02540ico is offline
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Location: Colorado Springs, Co
Join Date: Aug 2009
Posts: 278
Mein Auto: 1997 850Ci
Sounds like its in LHM (limp home mode). Should display the check engine light for LHM. Read the codes to see if you have pending codes that may point you to a specific component. Nice thing with the V12s is you can swap parts side-side to find the failed component. Many times it ends up being the spark sensor on plug 6 or 12, but there are many parts that can cause it to go into LHM. Failed fuel pump, coil, cap/rotor, FPR, etc.
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