Hello, I have read a few forums and tried everything, first let me explain what is happening. I have had this car for a few months, it is a 2002 c230 kompressor coupe 6-speed manual. I did the normal care, oil change, new plugs and air filter along with the diff fluid, brakes and shocks. Then one day after work it was rather cold the check engine light came on when I was waiting for the car to warm up.

upon driving the vehicle I realized that the super charger was not boosting up. I took it to auto zone to get the code checked and it said it was a secondary air pump. So I read some more and cleaned the valve that sometimes gets clogged and then I replaced the supercharger throttle body hopping that would fix it. Now it works intermittently. Could this be a wiring issue?

thanks in advance​​​​​!

 

Hello,you've done alot, well done! i know nothing about this myself, but , "secondary air injection system" would be the correct search term. i do not know the symptoms. but there are some in-depth diagnosis that you can do, have a look at this video:
i have an m271 engine , not sure what you have, but this video is for m111 but.. same concepts im guessing

this video shows a 'pump' lol i had no idea it existed: