[Nisshawn]

My engine light was on and now off, I have no headers. I need to change the o2 sensor right?? It looks pretty easy, but any tips or suggestion on install, id appreciate it , .....and why is my engine light off now?
thanks
nisshawn

 

[wiche]

not necesarily. Mine was on, i changed the o2 sensor and that wasnt it ,it was my iacv.

 

[Nisshawn]

iacv????

 

[wiche]

IDLE AIR CONTROL VALVE