Bought the car a couple of weeks back - fairly low miles 05 so I'm guessing its been used for short local journeys only.
When driving with a constant thottle posn if I slightly press or slightly release the throttle I get what I can only describe as a double judder (ie if accelerating it starts to accelerate, stops then starts again, same for deccelerating).
The car has just been for a major service and they replaced the plugs (and fuel / air filters) as well as cleaning out the throttle body. Initially I thought this had helped but when driving back from work today it's as bad as ever.
The car also seems to have a general lack of power - it's fairly quick in 1st gear but gutless in 2nd gear upwards (even when revving fairly hard). I know it's only a 1.4 but I'd have expected more - I had a Rover 214 16v a while back that was far quicker than this with only 12 or so more HP.
I plugged in my ELM diagnostic tool this evening and there is nothing showing (MIL light is off).
So - any thoughts? If there was a coil pack problem or EGR problem would they both result in the engine light coming on? I've seen the guide on replacing the EGR and was half contemplating removing it to see how dirty it is.
Another thought i had was chucking in some injector cleaner to see if that helped but never really found any of these to make any noticeable difference.