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Join Date: Feb 2008
Location: United Kingdom
It's a cam sensor fault, either a dodgy connector at the back of the inlet manifold, the sensor is duff or the cambelt has stretched. If you've recently had a cambelt changed recently then the garage that did it should be sorting it out under warranty as they have probably cause the problem when they loosened the exhaust cam pulley, if they claim they didn't loosen it then tell them you want your money back as they haven't done the job right.
Also with this fault the engine will go to limp mode and your revs will be limited to about 3K.