No mil lamps came on. Prior to this it had an intermittent accel surge. After the loss of power it was towed and diagnosed with a bad alternator and battery. It might need an alt and batt but is that why I lost power?
The voltage to electronics is critical and any loss of generated power from the alternator will result in under voltage to the ECM
that in turn throws out the set parameters of the sensors and so the ECM goes into reduced power mode
the surging could be an intermittent fault in with the alternator , failing cells in battery or loose or failing drive belt
before you spend money on new alternator and battery, you can have the battery load tested and the alternator bench tested as the fix can be reasonably simple
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