tufty1974

Yikes, I hope your ongoing issues get resolved soon! How did you go about the intake clean? Self-service or a mechanic? If mechanic, what sort of cost was it if you don't mind me asking?

I was delayed in looking into this further by a house move and warmer weather making the problem go away! Did the purge valve replacement fix your issue? If so, I will grab one, it looks relatively easy to fit from that photo, was that the case?

I'll look into that, thanks. No engine light shown, I'll grab my little OBD dongle and see what the Torque app shows in the way of codes. I assumed none given there was no engien light on...

Not resolved yet sadly. Mine is only when cold, once the engine is fully up to temp it's smooth under all loads. I'm not sure how I feel about removing the inlet manifold, it's the only car in the household at the moment, so being without it for an extended time is not appealing; I've never taken one off before and if it goes wrong I can't get to the parts shop easily! It only has E5 Super fuel in it, I used a tank or 2 of the E10 and the car hated it, the difference in fuel economy alone makes up for the c. 10-15p a litre price difference too.

Can anyone offer advice on where to check next before I start just throwing new parts such as coil packs at my car? When the engine is cold it shudders a little under very light acceleration, such as maintaining 30 or 40 mph, whether on cruise control or just my right foot. If I accelerate harder, it's fine, no misfire. So far I have put new plugs in it (when did plugs get so expensive by the way?) and run 2 bottles of injector cleaner through it and the issue still persists. I only use super unleaded and buy it from several fuel stations, so I doubt it's dodgy fuel. Any ideas on what I can try before blindly buying new parts that I may not need?