P0403-P0405

[sc6.0]

So, after all of my trial and error, I had my truck running great, then boom...MAP sensor goes out. So, I have a few of the same symptoms only with the new MAP sensor, the truck will fire. So, at idle, I have a bit of a buck, and running rich situation. I have all of the mods listed in my signature and a few others. So, I run a few scanners on my truck, all indicating P0403-P0405(EGR issues), no more, no less. Is it possible that my EGR delete is part of the problem in that my truck is attempting to run without the EGR valve in place? Is it confused and maybe trying to run into a form of "limp" mode? Any thoughts on the matter greatly appreciated. Thanks!

[dhanna6powerstroke]

I don't think you can run an EGR delete on the 05+ trucks without an SCT to turn the system off. Not sure if you have one since it's not mentioned in your sig.

[forddieseldoctor]

Do you know when the last time your truck was reflashed was? The latest calibration from Ford will run in a limp mode with the egr valve disconnected. That is what is causing your codes. If you can't run with the valve in the hole due to the style of delete, then I recommend finding a way to secure it in place so that you can keep it plugged in. If you still have issues after reconnecting the valve then you need to monitor your ficm voltage and see if it reads a minimum of 45 volts. Should read 48 volts.

[sc6.0]

I have had the truck one year and have not had the truck reflashed, so I can't say for certain. I do not have the old EGR valve unfortunately, so I am looking for an old one to plug in. I checked my FICM voltage and I was at 48.6 I believe was the reading. So, would an SCT with Eric's tunes from Innovative Diesel help me at all, to clear the code and thus, the rough idle?

[forddieseldoctor]

Where are you at? I might be able to hook you up with a used one. They keep the scrap bucket under my bench at work. I got to see all the metal that gets tossed. If they knew how much stuff I pull from there they would move it away from me.

[sc6.0]

Originally Posted by forddieseldoctor

Where are you at? I might be able to hook you up with a used one. They keep the scrap bucket under my bench at work. I got to see all the metal that gets tossed. If they knew how much stuff I pull from there they would move it away from me.

I am in South Carolina...PM if we can work something out. Thanks!

[forddieseldoctor]

I'll look and see if there's one sitting @ work.

[sc6.0]

Originally Posted by forddieseldoctor

I'll look and see if there's one sitting @ work.

Thanks! I greatly appreciate it.

[forddieseldoctor]

I dug around this week and I couldn't come up with a used one for you. I was hoping that I would get on in this week, but no avail.

[sinner6.0L]

problem with getting and old discarded valve is it'll likely be bad anyways. you need to find someone that did the same thing as you and threw out a good valve i don't have any either btw