seems to quieten down when its warm. Its a strange sound kind of like when you make a crystal glass sing when you run your finger around the top.
I recently had my fuel pressure regulator changed but I dont know if this has anything to do with it because I heard it very faintly before it went in.
Im wondering if it could be a fueling issue. Would resetting the ecu make any difference?
I was told that disconnecting the battery helps the ecu to 'learn' the style of driving and adjusts the engine management to become more economical or am i talking rubbish?
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