I have a 2000 GS-R. I changed the O2 senor out back in june. I still have the check engine light coming on and i have a couple of troblue codes. Here they are. P0170 Fuel Trim Malfunction and P0172 System too rich. I called the dealership and they have yet to get back to be on this. There is a problem with the vtech cause it wants to kick in at 4500 rpm's. Can help me please

 

Was is a direct OEM replacement sensor or a cut and re-wire one. If it is a four wire one, you probably wired it wrong, or you did not do a good job or wiring it. It happened to my boy. Everything was fine for a minute then the acura started acting up and sure enough it was the O2 sensor.


Good luck fixing it.

 

it was a cut and wire and i wired it how its suppose to go.

 

always go OEM on those things... aftermarket sensors are peices of poo... and btw your VTEC is supposed to kick in at 4400 rpm's