I've recently replaced the TDC sensor and the camshaft sensor because of the usual conking out and refusing to start which has thankfully been cured. Unfortunately I have now developed a different fault. I initially felt the turbo was lagging more than usual so cleaned the EGR and this has now largely cleared although there doesn't seem to be as much boost. If we're pootling about the problem doesn't occur and it hadn't done it for a few weeks because I hadn't had it up to motorway speed. All of a sudden at between 70 and 80 mph the turbo stops providing boost and the power drops. The heartbeat light flashes up and the turbo refuses to kick back in. Stopping and switching the engine off usually resets the problem and it can run fine for between 3 minutes to 3 weeks without recurring. I actually thought it had cured itself because it hadn't done it for about 3 weeks until today. :mad::confused:
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