What could be wrong with my car?
I have a 2001 volkswagen jetta 1.8t, 5 speed. It has trouble starting up in the cold weather, We've replaced the battery and it still has the issue. My check engine light is on we havent tested it out yet for codes. My spark plugs where replaced less than 6 months ago but the coil packs were replaced about two years ago because of a recall. The wires are not in the best shape.. It starts fine in warm weather and drives okay, it does have a slight idle issue and i have to let it warm up for a few mins otherwise it will buck and stall out on me. Lastly sometimes when I turn the key theres a high pitch noise that comes right after, not sure what that could be either?