guys i have 5at 2003 tunedg35 BC cams and valve springs, spacer, CAI, hks and headers..suddenly i had a great loss in power its like 2.5l now..i put on scan it showed an error in the cam shaft sensor i changed it but nothin changed so what would be the reason??

 

For my previous 5at i had problems with the headers... i took it to the mechanic and he said they wereint installed properly and the gaskets were leaking or whatever... Could be that or possibly just try a ecu flash...

Other then that lets see what other people have to say

 

i dont think so from headers i installed them from like 5 monthes and it was normal and i was satisfied with great performance why now?

 

It was the same thing for me... O yes I forgot to add he also said something about one of the spark plugs misfiring so he changed one of the spark plugs as well... But I feel you for me the car was really sluggish that's why I got it checked out.

 

rob g35, If you have more information it would be very helpful in routing you to the right direction. Like did you buy a new part before this happened?

Btw... seeing how the scan tool told you that the sensor was bad, and even after you replaced it, the problem still isn't resolved, I would check the harness for bad wires/terminals.

GL