[Is300nac]

ok peopl...i have a 2004 is...rit...i put in a aem ram air intake...and a couple of months this fan noise started to appear...from what it sounds like under my passenger dash...it startes about right at 3000 rpm and if i keep going faster its more constant...now wtf is up wit that..great advice is welcomed...thank u !!!

silver
H&R lowering springs
toyomoto header 2nd gen.

 

[bRibRi]

Maybe you should try to see if there is something caught in the fan. You can also try putting back on your stock intake to see if the noise is still there but I seriously doubt that your aem intake is causing this problem.

 

[Is300nac]

yea but...ther is a fan noise...under the pass dash..and its a pain in the ass to put my stock intake on...any other suggestions anybody?

 

[FourT6and2]

Lexus is at fault

 

[aemjr]

close to your dash? what type of noise? Maybe what you are hearing is knocking, your aem might be leaning out your air/fuel mixture.

Did you get the CEL on? blinking trac? anything?