Hey guys, I ran my OBD II scanner anf my 04.5 Z came back with these codes.

Im running TN ST.

I've searched online and codes come back to below info:

P1273 A/F Ratio Sensor 1
p1284 A/F Ratio rich bank 2

Those of you who have had them and gotten rid of them, feel free to start writing lol

Thanks everyone

 

Hmmm, Is you car tuned or running the out of the box reflash?

Do you have a Air/Fuel ratio meter?

-George
GT Motorsports

 

that's very common on most FI g/Zs. you will learn to love them; they are your friends.......and Mr. P0300 will also come to join the gang, too. He is more of an occasional visitor though.

 

I have a utec, and I have a AEM Wideband

 

+1 Especially on the 04.5 and up cars. Kit choice is irrelevant for them.

 

I get them pretty much non-stop. I actually get concerned when my CEL is off.

 

You could use the Osiris reflash and target a new A/F ratio. Then perhaps those CELs would not be generated by the stock ECU? I think only the GTM folks have a lot of experience with this...

 

thanks guys, i guess its one of those things im going to have to live with lol

 

I bought an inexpensive actron OBD2 scanner to keep in the car. It has a short cable and is a compact unit. I don't like the CEL light to be on....so I delete the codes all the time.

 

Finally got rid of my P1284 by replacing the driver's side upstream O2 sensor.

 

they are both codes for the upsteam O2 sensors. Did you replace both upstream sensors? are you still getting the P1273?

 

BRIAN!!!!! whats up man, long time no talk. we go WAY back



i actually think something is wrong when i dont have CELs now... hehe

 

How many engine codes did you have at one time? it had to be some kind of record.

 

still have mine on.. both CEL's have been on for 3 years with TN kit. Need to pass inspection this year so I haven't driven the G since October lol.. Well it's stored for winter.. but I still need to fix it.