EGR Valve and Boost Pressure

[RET]

Anyone know why this is?

My truck’s max boost is about 25-28 on the stock gauge.

If I disconnect my EGR wire I can only hit about 22 max, I even plugged in a 2nd dummy EGR valve and the max boost is still about 22?

Any thoughts?
Thanks

[RET]

Nice Document here

http://www.motorcraftservice.com/vdi.../Dobdsm305.pdf

[nummit]

You need to make sure the valve is closed before you unplug it. It the EGR is open when you unplug it, the valve will stay open.

[RET]

Originally Posted by nummit

You need to make sure the valve is closed before you unplug it. It the EGR is open when you unplug it, the valve will stay open.

Yup...I have that covered, and the truck runs good in all ranges (I'd say better in low to mid)...just a tad less boost when ran WOT.