Cardiff City skipper Graham Kavanagh fired his side to victory in a tense match which was never allowed to flow by fussy Birmingham based referee Trevor Parkes.
Martyn Margetson made his debut in the City goal with Neil Alexander on Scotland duty and he showed what a fine keeper he is with a faultless performance to keep Wycombe at bay when they threatened to score.
Kavanagh struck with 11 minutes remaining to keep the Bluebirds on course for promotion.
He received a cross from Andy Legg but his first attempt at goal came back off a defender. He made himself space when controlling the ball before sending a crisp shot past the diving Martin Taylor into the visitors' net.
"It was very pleasing to get the goal when we did as the gaffer had told us to keep going and something was sue to break," said the City skipper.
"We kept battling away but were thankful for the saves by Martyn who kept us on level terms with a couple of superb stops.
Chairboys Boss Lawrie Sanchez was very unhappy that his team ended up with nothing.
"We deserved at least a point and it is very disappointing that after matching Cardiff all over the field we should end with no reward.
"That was our best performance of the season and if we keep up that sort of form then we will be all right.
"We had our chances today but football can be very cruel. Once we had sorted out our tactics I felt that we were the better side. Nevertheless I still expect Cardiff to be promoted alongside Wigan.
"When you have expensive players in your side you expect quality and there is no reason why Cardiff cannot go on in time, even up to the Premiership."