Took the cos for a long drive yesterday for the 1st time in 6months. it drove very well up the duel carriage way boosted well etc, but poodling around town it coughs and kangaoo's like a fooker and it stalled on a roundabout and back fired but did start again luckily enough for the car or else i would of gone basil fawlty on it and wacked the hell out of it with a branch. i did wonder if it could of been the fuel filter???