p0507 and p0505
Thread Starter
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2006 e55 amg
p0507 and p0505
my 06 e55 gave me the p0505 and p0507 code which are both related to the idle air control system. I've done lots of research already on here and other forums and have watched many videos of what could be simple problems with the throttle body, vacuum leaks, idle air control valve, or other miscellaneous problems that I hope aren't a great hastle. as far as visual inspecting the engine for any sort of displacement like a busted air line or dirty throttle body, I just can't figure out what would be causing this code and im hoping its nothing with the internals (if it can be) that are causing this code. Just need some explanations and answers if someone on here has had a problem similar to mine.
MBWorld Fanatic!
Joined: Jul 2014
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2005 e55 AMG
More then likely an air leak and VERY small as well. These ECU's along with the pressure sensor are extremlly sensitive to a very small variance and the ECU will have a fit.I am chasing this as well but also have low voltage code that will raise the idle,push the rpm out of it's window,and trip a code.
Thread Starter
Newbie
Joined: May 2025
Posts: 9
Likes: 0
2006 e55 amg
More then likely an air leak and VERY small as well. These ECU's along with the pressure sensor are extremlly sensitive to a very small variance and the ECU will have a fit.I am chasing this as well but also have low voltage code that will raise the idle,push the rpm out of it's window,and trip a code.
MBWorld Fanatic!
Joined: Jul 2014
Posts: 3,323
Likes: 583
2005 e55 AMG
Sometimes,lot's of times, the smoke test will not show it. Log in with a scanner,watch fuel trims and start spraying every seal with brake or carb clean on preferably a cool engine to prevent any fires. Pretty unlikely but you never know. I always have a fire extinguisher near me whenever doing this and it WILL find a leak very fast and is much faster as well.
Thread Starter
Newbie
Joined: May 2025
Posts: 9
Likes: 0
2006 e55 amg
Sometimes,lot's of times, the smoke test will not show it. Log in with a scanner,watch fuel trims and start spraying every seal with brake or carb clean on preferably a cool engine to prevent any fires. Pretty unlikely but you never know. I always have a fire extinguisher near me whenever doing this and it WILL find a leak very fast and is much faster as well.
