wont start Disconnect the battery and it does. new mass air and temp sensor on 2001 Volkswagen Cabrio

I replaced air mass, coil, wires, coolant sensor. wont always start. disconnect the battery and it starts and runs fine for a day

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1 answer 1 comment
When youre doing that ,you're resetting a sensor ,which 1 is it ..hmmmmmmm..
Which one that I haven't changed will cause it not to start?