optionet

I recently bought some stone headers for my car which is a 01 Acura CL-S. I noticed that I have the whistle sounds...it range from about 2.5k - 5k rpm, also my check engine light is on due to the O2 sensor... anyone has the same problem ??? Should I replace the o2 sensor or just clean it with methol.

Thanks

JaredGMS

Sounds like you blew the O2 sensor during install...You probably need to replace it.

Also, I believe that Stone headers have that resonance problem in the RPM range you described. It's "normal" for those headers

Have fun !!

mrsteve

iTrader: (1)

Yep, the shop that did the install probably damaged the O2 sensor. Also the whistle noise is either resonance or maybe a warped flange is preventing a tight seal somewhere.