whats happening when my lights dim at night and then go back to normal also check engiene light comes on?

AL Haynes, January 2010

over revving when turning on the engine?

sally, January 2010

The battery voltage suddenly drops for a moment - you may have a poor connection somewhere - I would guess the engine management light is just a spurious symptom of the low voltage. The lights going dim is the tell-tale - they will only dim if the voltage drops - and for no other reason.

Peccavi, January 2010