I have noticed a breather pipe seems to be all flat squashed and perished the one back of inlet manifold would that have anything do with it ?
YES . If it the PCV hose. It comes from the front of the engine. Right behind the exhaust manifold, out of the PCV valve. Make a 90* turn to the left and connects to a hard tube. Then a soft tube again , as it make a left 90* turn again towards the intake mani. Right at that turn the hose usually gets soft and collapses or just falls apart. It will definetely cause your problems.
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