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The car is a 93 VW Cabriolet (Mk1 Golf/Rabbit).
I was parked with the engine on lowering the hydro/electric roof when the engine and power cut out. I couldn't restart the car so checked the battery and fuses - all fine, so I tried again. This time the car did start but now is idling very low, sputters a bit and the tacho twitches. Feels fine to drive - this seems to just happen at idle.
Have I blown some electrics? Fuel pump relay?
I decided to check the engine bay while the car was running and immediately noticed a bright continuos spark on one of the battery terminals. Turned of car and went to fix it but the terminal was almost red hot and burnt my fingers.
Eventually I managed to clean the terminal again and tighten some of the wiring eyelets (ammeter connection) that were attached to it. Cars been running fine since.
