P0402 with segr?
segr been on for a few years
maybe it went bad.
any thoughts?

put a set of test boost hoses on ,same thing
installed segr bypass plug disconnected did orm
runs like it should.
any body know how to test/repair a segr?

I would guess one of the solid state "things" that fools the MAF or whatever into thinking the EGR is working when it's not has died. Certainly possible. Check the builders thread at viewtopic.php?t=23033 and maybe contact folks. Of course the somewhat more sophisticated current solution is to pull the SEGR and replace with a GDE tune but that does cost some $s

_________________
Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

I've got one that I won't ever use if you wanted it. I think I gave $50 for it a year ago... I never assembled it and went the route of the diy mpps tune instead. For the $50 I have into it, it's yours.

_________________
2005 Liberty Sport CRD
Cleaned MAP sensor, ORM, ELM327 Bluetooth OBDII reader with Torque Pro, USA Spec PA-11CHR iPod adapter (used Aux input for Pandora!)
Awaiting install: EVIC, air cleaner hose, and Saikou Michi Catch Can (like a Provent)

Did you hear about the guy who was hooked on brake fluid?
He swears he can stop any time.

I screwed something up when I installed my SEGR. So I always have a CEL for the MAF circuit.
I just live with it.
EGR is blocked
FCV is removed
No worries

_________________
U.S. Army Retired

this was the problem,
blown airbox to turbo hose causing p0402