EVAP Sensor Issues

what is the code that is given auto parts checks for free. get back with us on this.

the car did not shows any code that is the problem also.

try another scanner some wont work others will, check fuel pressure as well with a gauge auto parts rent it.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

that is for the evap monitor, can you give me how can solve the problem with the catalytic monitor? Thanks a lot.

There isn't a code to give for catalytic monitor the only thing I can think of is an O2 sensor may not be heating up right. Or it is a can bus problem that can only be seen by a professional scanner not auto parts.

thanks men you are the best, appreciate all of your advice.

Just to add to this one before you went to the smog test did you clear any codes in the computer battery die or was it replaced?

now the check engine light is on due to P0420 code catalytic converter.

Sounds like the codes were cleared at some point that's why the monitors wernt ready.When the battery dies or is replaced or codes are cleared.The monitors get cleared and have to be reset by driving/operating under certain conditions.Sounds like you have a bad cat from the code you have.As long as there are no exhaust leaks then more then likely you have a bad cat.

yea i notice that i already bought a new one thanks guys a lot for the advice,am just waiting to install it

After you get it installed you will have to clear codes and drive it for a few days and see how the monitors look.It can take a while for them to set.Also your welcome were here to help.

thanks guys

How did you get on? any up date yet?

i already install a new catalytic now i have to drive a little i thought

Yes clear the codes and drive it a while to set the monitors .

thanks pals everything is going awesome,i appreciate all the good advises from you guys

Your welcome were here to help please tell all your friends about us.

of course i will

Thanks we really appreciate it we want to help as many people as we can.