I have read many horror stories on the internet about these 2 code
having people replace on their corolla: gas cap, charcoal canister sensor, O2 sensor both before and afte converter and vacume switching valve. And after paying hundreds to ove
1000 dollars and still not correcting the check engine light problem. Disconecting the battaery makes it go out but it comes back on agai after the computer cycles after 100- 150 mi. I know some black tape will over the light will fix it but it will fai emissions in PA. Reseting the compter will also cause it to fai emissions. Some people say toyota dealers never fix the problem and don't know ho to.My question is how can I get this light to go out on my 1999 coroll diagnosed with these 2 codes and not go through the unecessary expens that these people have gone through? If anyone can solve this proble for me I would be very happy