my 2000 c230 kompressor's check engine light came on i had it diagnosed and it's code P0450: evaporative emission control system pressure sensor malfunction. can anyone tell me what this is or how i can fix it? Thank you for anyone's help.

 

The check engine light is mainly tied into the pollution controls, MAS O2 sensors, EGR, and the many sub systems involved with emissions. Replacement of the part is the only fix. Sensor as you know are electronic devices, when the fail they fail and replacement is the only fix.

 

I believe this check engine light has to do with the Fuel Tank's pressure sensor. Could be an electrical fault in the fuel tank pressure sensor.

 

is there any easy way to track down what the problem could be also if it's in the fuel system do i have to remove the tank? thank you for all of your help.

 

As I said in my first post, the check engine light is for the emission system, mainly the MAS and O2 sensors and ALL the subsystems. No there is no easy way to fix. I wouldn't start replacing parts, if you do happen to replace the correct one, you will still get a check engine light, as it has to be reset with a coder. So go to the dealer and find out what exactly is wrong. Old way troubleshooting with new cars, can run into more money then having a expert put the car on a computer and finding (usually) the correct fault. Take my word, I've been down this road. Cars today are designed so the DIY can't fix as much as we would like to.

 

thank you i appreciate your help...looks like dealer here i come.

 

You made the right decision. Cars today are rocket science and getting more compicated as time goes on. Soon a tech will need a PHD to fix them