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