Throttle hesitation

[Siidd]

Right iv got a hesitation On my 172 could this be of the exhaust blowing and I think iv got a dodgy fuel sender/pump if not any info would be helpful

 

[columbo]

Does it happen when cold or warmed up? If cold don't worry about, if warm then could be a number of things.

Cat/plugs/ht leads/injector(s)/coilpack etc etc could be just some of the things causing it. Any warning lights showing on the dash?

 

[Siidd]

No warning lights seems to do it all the time cold or hot iv only just brought it so I might give it a good service see if that helps