Dreaded p5050 p507 codes after 82MM TB switch
To be fair, the OP had an issue before he upgraded, and the t/b he tried was not only used but had been modified. In short, he took a chance and it will take a second try to get it sorted.
As well, skratch pointed out that he only used three of the four screw location to mount the throttle body(post #17). I surprised he got it seal up as good as he did.




To be fair, the OP had an issue before he upgraded, and the t/b he tried was not only used but had been modified. In short, he took a chance and it will take a second try to get it sorted.
As well, skratch pointed out that he only used three of the four screw location to mount the throttle body(post #17). I surprised he got it seal up as good as he did.
Marcin checked everywhere for leaks with brake cleaner and found none, none by the injectors either. Swapped the TB with the new one I picked up and viola!! TPS is right at 2% in drive with foot on the brake. No more codes. He also reset the TCU and it is shifting much better, I was having a hesitation between shifts before. I tried the reset with my foot on the gas but it didn't fix it. Are we sure the Reset works?? Anyways the grinded TB is the culprit. Actually could see daylight if you closed it and looked at the space between the blade and the circumference. I'm thinking it was not put back together correctly after the shaft grind. So to all those out there that are following this thread, keep that in mind. Thanks to all the suggestions as well.




Marcin checked everywhere for leaks with brake cleaner and found none, none by the injectors either. Swapped the TB with the new one I picked up and viola!! TPS is right at 2% in drive with foot on the brake. No more codes. He also reset the TCU and it is shifting much better, I was having a hesitation between shifts before. I tried the reset with my foot on the gas but it didn't fix it. Are we sure the Reset works?? Anyways the grinded TB is the culprit. Actually could see daylight if you closed it and looked at the space between the blade and the circumference. I'm thinking it was not put back together correctly after the shaft grind. So to all those out there that are following this thread, keep that in mind. Thanks to all the suggestions as well.
The Best of Mercedes & AMG





car runs perfect no check engine at all, smoother than before and boyyyy does she sound insane WOW... the throttle response is absolutely noticeable i just tap the gas pedal a little and she just jumps.... cant wait for a re-tune from jerry




you can see my plate on there welded... perfect seal


and trying something different :P my Yellow city lights they look sick fyi

Last edited by berti_00; Apr 30, 2013 at 03:22 PM.





What do these do for you? I've never heard about them.
This is exactly the same issue I am having. If you find a solution, please, PLEASE let me know.
Was just told may be in the tune and MAP sensor voltage range needs to be increased. I'll let you know when I see Marcin at Speedriven next week















