Hi, i'm new here so please be kind as this may not be the correct section.

I have an Astra 2.0 SRI W reg which i'm having problems with, When it is wet it splutters and misfires, Also (even when dry) it seems a little dead before it gets to 3000 revs and when i take my foot of the accelerator then put it straight back on again there is a sort of delay in acceleration sort off (it's hard to explain).....

I have had the engine checked out with things like Compression test, Spark plug and leads checked among other things also i have had it plugged in to the fault finding machines over 4 times at different garages and they all say no faults and the engine is runnng fine???

So does anyone out there know what it could be or can recommend a garage they have confidence in in my area of Bridlington, East Yorkshire.......

Thanks for your time.

p.s if this is in the wrong section please move it.