The Sky Blues were forced to settle for a replay in the Emirates FA Cup Third Round, following a 2-2 draw away at Bristol Rovers.
The hosts opened the scoring through former City striker Jonson Clarke-Harris, before Liam Walsh found the back of the net from range.
However, the Sky Blues fell behind a minute later when Bristol Rovers captain Tony Craig restored their lead.
After the break, the Gas captain found the back of the net again, although this time it was in the wrong end as he helped Liam Walsh's strike towards goal.