anyone get po505
Re: anyone get po505
Did you ever resolve this?
I've been getting it too. P0505 and P0507. It seems to only come up when I start the car and let it idle for a few minutes. I clear the code, and it goes away. I haven't had any trouble with the car, it seems to run fine.
Who's tune do you have? When did it start?
I've been getting it too. P0505 and P0507. It seems to only come up when I start the car and let it idle for a few minutes. I clear the code, and it goes away. I haven't had any trouble with the car, it seems to run fine.
Who's tune do you have? When did it start?
Re: anyone get po505
Originally Posted by tom2112
Did you ever resolve this?
I've been getting it too. P0505 and P0507. It seems to only come up when I start the car and let it idle for a few minutes. I clear the code, and it goes away. I haven't had any trouble with the car, it seems to run fine.
Who's tune do you have? When did it start?
I've been getting it too. P0505 and P0507. It seems to only come up when I start the car and let it idle for a few minutes. I clear the code, and it goes away. I haven't had any trouble with the car, it seems to run fine.
Who's tune do you have? When did it start?
Re: anyone get po505
Originally Posted by tom2112
That's interesting that yours started after your tune. So did mine. Had you done any other mods right before the tune?
Re: anyone get po505
There is a stepper motor within the throttle body that when you start the car, the motor fully opens/closes the throttle plate to see the limits that the throttle plate can travel. When you're off the throttle, (idling) the plate isn't fully closed otherwise the engine would shut off (lean out). I haven't looked at the throttle plate but some manufacturers drill a small bore hole so that the plate can fully shut but air can enter through that hole to enable idling. If you keep going through throttle bodies and the same code appears, I don't think it's mechanical issue, more along the lines of an electrical, either wiring back to ECM or tuning parameters. Just a thought, not bashing anyone.
Re: anyone get po505
Thanks for the code list, AMX. Unfortunately, the six word descriptions don't mean much to me. Seriously, what does "Idle Control System RPM Higher Than Expected" really mean? Does it mean that my engine is idling too high? How about "Idle Control System Malfunction"? What the heck does that mean? What kind of malfuction?
Re: anyone get po505
Well i had this same code. I got it after installing the Needswings Catch Can. Long story short, I had a leak at the upper intake manifold. Seems the screws have some type of locktite from the factory and I removed the manifolds for the instal and didn't use any type of locktite on the re instal so the screws backed out causing an intake manifold leak. Check the torque on the screws. If they are loose get new gaskets and use locktite ..... can't remember which one. I think it's the blue. Use the not so permanent color.
Les
Les
Re: anyone get po505
Checked everything. Didn't see any problems. Drove to San Diego and back (1000 mile trip) no codes. Cool for now I guess.
Thanks for the replies. Thanks for the code list.
Speaking of the code list, if you go to the sites "images" url, there are more "code girls" listed.
Including this one tagged "woody_girls".
Lookin' good Woody! Friends of yours?
Thanks for the replies. Thanks for the code list.
Speaking of the code list, if you go to the sites "images" url, there are more "code girls" listed.
Including this one tagged "woody_girls".
Lookin' good Woody! Friends of yours?
Last edited by tighed1; 09-01-2009 at 01:20 PM.
Re: anyone get po505
Hey Folks. While poking around the RCM I also noticed what may be causing some of us (myself included) problems with getting the dreaded PO505 fault code. Once I get a look at a few different RCM's I may be able to determine if what I suspect might be the problem, is the problem.
Once I can verify these problems (need more RCM's) I'll do one of my DIY's with extensive pics and write up on how to fix the RCM yerself for both problems.
If this all works out we will save big $$$ and a lot of headaches.
Once I can verify these problems (need more RCM's) I'll do one of my DIY's with extensive pics and write up on how to fix the RCM yerself for both problems.
If this all works out we will save big $$$ and a lot of headaches.
Re: anyone get po505
Hey Folks. While poking around the RCM I also noticed what may be causing some of us (myself included) problems with getting the dreaded PO505 fault code. Once I get a look at a few different RCM's I may be able to determine if what I suspect might be the problem, is the problem.
Once I can verify these problems (need more RCM's) I'll do one of my DIY's with extensive pics and write up on how to fix the RCM yerself for both problems.
If this all works out we will save big $$$ and a lot of headaches.
Once I can verify these problems (need more RCM's) I'll do one of my DIY's with extensive pics and write up on how to fix the RCM yerself for both problems.
If this all works out we will save big $$$ and a lot of headaches.
Did you ever find what you were suspecting about the 505 and the RCM?
Re: anyone get po505
I looked it up for Mercedes and it is a function of the IACV, ECM and AAC.
The idle is adjusted by the step motor to suit the power needs at the moment.
I have no idea what some of this means.