Evening all, hope it would be a while before I was back on here, after my boost related issues last year..
Different problem this time, was on the motorway the other day, cruising speed say 65 on half throttle, car suddenly started juddering a little, put my foot down a bit, cleared through it and all was fine. Did this a few times and as soon as you touched the throttle it cleared. Almost felt like it was being starved of fuel.
Did 50+ miles, no issues. Came to go home, after about 10 mins of driving, did the same again and cleared the same. Then it did it again but would not clear, was juddering quite bad, felt like i'd lost a cylinder and had to almost coast to a laybay, it wouldnt hold let alone gain speed. Pulled over and turned engine off. Oh, ESP light was lit when it started juddering.
Started the car, ran fine, sounded fine, revved fine so set off again. Less than a mile on, exactly the same thing again, no power, ESP light on and had to coast to a stop. Seeing as i'd got nearly 50m left to go, thought sod it and rang the AA. He came, had a look, started and revved OK etc. Stuck the diagnostics on, no errors shown. Went for a drive with him in and this time I had to really try hard to get it to throw the light and go to basically 3 cylinders, i'd been driving uphill using high revs, low revs with lots of load etc and the only time it happened was when going around a roundabout on half throttle.
Parked up again, he had another look, diagnostics again, nothing, started and ran absolutely fine.
When it does it it sounds like its lost a cylinder, he confirmed this too.
We decided instead of towing, that he'd follow me home, then tow if necessary. For the 50m drive I only had to reset ignition about 4 times, but then as we got to literally the last turn and 0.5mile for home, it kept throwing the ESP light and going to 3(?) cylinders almost every 200yds, didn't think I was going to get home.
As soon as parked up, checked diagnostics again, nothing. Starts and revs fine....
When it goes, it really feels like its struggled on fuel / lost a cylinder.
Car has done 230k miles, original fuel pump, fuel filter changed a few months ago, everything else fuel related - injectors/pumps etc original.
Any ideas guys?