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just a question ill see how well i can explain it.. :P

had my car tuned with the pfc, and has showed high knock every now and then. i think mainly if i do big 1st, 2nd or 3rd, 4th. i think its a boost spike? and when i flatten it in 3rd or 4th occasionly when going up a hill.. :rofl: maybe spiking again.. ;)

now i have discovered i slight engine rumble at really low rpm, [i had the bonnet open to hear] sounds like something is worn or something

leaking loose.. cant put my finger on exactly were its comming from.

i dont know if this is normal but i cant remember hearing this sound.

im kinda freaking out a bit so if someone can diagnose thins problem

or give me advice, thats would be great!!

thanks jason.

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