The Northern Ireland international came off the bench at Ashton Gate to grab a equaliser deep into injury time - his second in as many games.
The Iron have secured seven points from their last three league fixtures and McCann has challenged the team to maintain their impressive form.
"We've got a good momentum at the minute and we're building on a winning reputation from last year," he told the Scunthorpe Telegraph. "Last time we were at this level we were never really able to put a decent unbeaten run together.
"We only put back-to-back wins together once and we've already done it early on in the season.
"But we want to do it a couple more times now. We've got some games coming up we think are winnable so hopefully we can build on it."