CAI and Engine whine

[camper67]

Ok just installed Shark Injector and a CAI. Now it seems that I have this annoying whining noise heard mostly from 1500-3000 rpm. It is driving me crazy. Anybody have a similar problem?

[BMWJosh]

wheres it coming from?the eng? or components of the eng.?like alt,ps pump,compressor?

[camper67]

It sounds like it is coming from the intake. A friend thought it might be the injectors.

[BMWJosh]

might be too much gas and causing a strain on the eng. making it whine how much psi them injectors push out?

[camper67]

It seems that the sound is worse at light acceleration and goes away when you fully depress the accelerator peddle. Also only at low rpms and worse when in auto mode ( I have a tiptronic).

[BMWJosh]

ok maybe air is coming past the injectors or pressure

[camper67]

OK talked to a guy at a shop and his friend put a CAI on an M3 and he apparently had the same squeeeeel. AAAHHHHHH. Tempted to put old stock box on before I check into the looney bin.

[CassiesMan]

Ummm...

Thats the sound of more air getting sucked in. I have the same sound on my 325i with a Carbonio Carbon Fiber CAI.