check whether ur oil level is reducing
if yes turbo seals n need service
open ur air filter pipe/hose
check if ur fin got free play front and back or sideways
if front n back then the fin will touch the compressor housing and make whistling noise also
aiyoh...now i change to SQV..same problem occurred...no sound from SQV...and i addd an extra injector, i i saw the connector of the intercooler is quite oily..do you think that the connector need to be change? do you think that the connector loose when the oil soak in it?? help help!
I got this from my fren who had a heavily modded civic in spore, however i couldn't get much info from internet, is it plug & play / or need complicating wiring job in mitsubishi 4g9x engine?? Is it...