is300tardtoter

PLEASE HELP!! I have Berk HFC, FI exhaust and Stillen Gen 3 intakes. I have a P2A00, bank one sensor one code coming up. I have replaced the O2 sensor in the header due to the dealer ship saying that the sensor was not reading right. A few days later the light comes back on and the dealership resets the A/F learning ratio and a day later the light is back on. The dealership says that the sensor is fine and due to the mods the car is running lean at idle and the senor is not fixing itself fast enough and trips the code. The said the A/F is fine once you start to give it gas and is only lean at idle. I was wondering if anyone else has had this same problem with their setup. Also will a Cobb AP and a custom tune take care of the problem since the sensor in checking OK?

WhosUrBuddiee

iTrader: (1)

Try resetting your ECU. May fix the a/f ratio itself.

is300tardtoter

The ECU has been reset along with the A/F learning ratio.

RISKY GUY

iTrader: (9)

I have same issue, if you get a code of pa200.(downstream) it is bank #2. sensor is not bad. its just the ecu is real accurate. I have reset mine like every 1000-2000 miles.

DCook42

I threw a code in bank 2 recently, was no big deal. With ur intakes and HFC's, you're passing too much air and it trips the code. Not a big deal but annoying. And yeah, a Cobb can be programmed to ignore selected codes if you chose (i've been told).

gan78mao

iTrader: (1)

u can search for the nonfouler thread. i have nonfoulers on mine and im running non resonated test pipes so far theres no codes and ive had it for 2 months.

is300tardtoter

Im throwing the code for the senor in the passenger side header not the one in the HFC. The sensor had been replaced and it is still throwing the same
PA200 code.