S-Type / S type R Supercharged V8 ( X200 ) 1999 - 2008 2001 - 2009
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What's the blinking ENGINE light mean?

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Old Nov 6, 2024 | 01:45 PM
  #21  
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600 or so

First check OBD status is CL (closed loop), then look at fuel trims

Hot engine, parked.
 
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Old Nov 6, 2024 | 04:57 PM
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It's always better tom get the OEM alternator rebuilt. We have seen many problems with the replacement alternators.

Do you have your OEM alternator?
I would look around for a local rebuild place and take back the aftermarket one your having problems with.
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Old Nov 12, 2024 | 03:52 PM
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****UPDATE****
Fault turned out to be misfires on cylinders 4 and 5. Replacing coils with new NGK coils cleared it up (after clearing engine light), car went back to full power mode and all previous rough running and associated engine faults have not reappeared.
 
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