EGR butterfly valve
 

i already have an EGR delete kit in my truck and been running it that way for awhile but im just wondering if its ok to run the truck with the butterfly valve still their or should it be taken out?:argh:

at a minimum you should unplug it

the EGR montor?

The idea is to un-mount the motor and leave the EGR plugged in. This will make the ECU think that all is well. However, when the EGR opens the air inlet valve closes, at least partially, which will starve your motor for air. It you leave the EGR plugged in and blocked off, you must remove the air inlet butterfly. When I did, my grid heater stays on. I had to unplug it. The grid heater sensor must be near the EGR flow. I did not unmount my EGR motor. I only blocked the Tube form the exhaust to the EGR, and left it plugged in. Good luck.

i removed the butterfly valve tonight and all went well but when i go to shut off the truck now it shacks more "like an 5.9 would" is this normal with the butterfly valve gone or no??

I don't know if this is normal or not. When I removed mine it made no difference when I turn the truck off, or otherwise, except for the grid. Remember, you are modifying your truck from the original manufacturers design and build. This will result in problems / quirks. Try different things. You can always return your truck to the way it was before and see if that was indeed the cause. I am a ways away from a programmer, $$$. I am really hoping to get one so I can see what this bad boy can do with a little more work. Again, good luck.

Yeah, its normal for it to shake.

The later flashes change how the butterfly valve reacts at idle. So, some of us are forced to remove it or it'll just studder at idle.