I need to know where this is located in our car. Also, want to know what to look for if your map sensor is going bad. I recently upgraded my TB to 82mm. Went down to the track and my trap speed remains at 120mph as before upgrading it. Occasionally, throw a code of p0505 and dissappears. I've already ordered for the MAP sensor, and will be replacing my valve body gasket seal as well, then will go from there.

 

MAP sensor is bolted to the IC on the rear passenger side

 

Here is the location of the MAP sensor, on the left here. I guess if it were going bad you would have incorrect boost pressure readings.

 

See this thread: https://mbworld.org/forums/w211-amg/...-tomorrow.html

 

I'm getting btw 12 &13 psi. Fuel consumption is down too, even though is registering btw 21 & 22 mpg on the dashboard.
I feel up my tank more often now.