The 'snorkle' that attaches to the throttle body, from the air filter, was creased and partially folded over/rolled. Not a full on air leak but a possibility.
The throttle body itself was filthy, very black and oily.
Is there a parts diagram available somewhere ?
Did the idle re-learn, marginally better,,,,,,maybe.
Plugged OBD in and ohhhhhhhhhh
There's a difference or error in camshaft position relative to the crankshaft...... at best thats a stretched cambelt
It's getting changed at local Subaru Garage (£345 which was reasonable i thought) on Tuesday, fingers crossed