The Sky Blues, who start the new campaign with a 10-point deduction, had looked to have salvaged a point when second-half goals from Callum Wilson and Franck Moussa saw them cancel out early efforts from Jamie Proctor and Joe Walsh
However, the visitors were left empty-handed when Mike Jones netted an 84th-minute winner for Crawley Town at the Broadfield Stadium in West Sussex.
For a full round-up of all today's action click here for in-depth match coverage from ITV Sport
More top news
Philippa has Sunday's weather for the east
Philippa has Sunday's weather for the west
A cloudy start with showers at times later.