ECU Engine management system has been replaced but the engine management warning light still comes on. The car still performs well but I don't know if anything else goes wrong. It's also too costly to keep on putting it in the garage for the plug-in testing.
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Yes garage did test and all was OK.
Have you run the system self test, the ECU light does not mean the ECU is faulty, only that a system controlled by it has a fault.
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