Hey guys, I just picked up a CRD. I had a bad thermostat (thanks for the info on verifying the problem). I had the dealer replace it. On the trip home I got a CEL. Got home hooked up Scangauge and read it. P0401 - Issue with the ERG Flow. My question is this, I plan on eventually going with GDE tune. I did the ORM prior to the dealer visit. However I did plug the MAF sensor back in to make sure they couldn't point fingers somehow and say that this was why the t-stat failed. So it has been running for 3 days with stock setup. Tstat got replaced, trip on CEL comes on. Now if I unplug the MAF sensor, this will disable the ERG. No issues right? But my question is, does the GDE use the EGR at all? I guess what I am getting at, should I complain again to the dealer and try to have them replace the EGR? Maybe I could do it my self and save the headaches and just get reimbursed? Or should I just leave it be?

Also I inspected the CAC tubes and intake tube. Seems in good shape, bunch of oil (typical). I also got down to the turbo. I noticed no lateral (front to back) play, but some play side-to-side. Is this ok? How much is to much? No grinding marks or resistance spinning.

Thanks,
Brian

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~ Brian
2008 WK Overland CRD

Keith is on record that the GDE tune does use a tiny bit of EGR. You would have to email him but I suspect a GDE tune will make that CEL go away.

I'm more concerned about your turbo. A bit of for/aft play is normal (nothing wrong with less though) but on side to side you shouldn't be able to feel more than a slight bare hint of movement.

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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

Driving mine home from purchase I got a CEL w/ P0104 code, too.
The seller had replaced the EGR unit and MAP sensors prior to me taking delivery.
I added the GDE ECO tune and have never seen the CEL again.
Runs better, too

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2005 Silver KJ Sport CRD 138k miles
GDE ECO Tune
Rx Catch Can
Mishimoto Intercooler Hoses
Magnaflow 12226 Muffler
Bilstein HD Shocks
Firestone Destination LE2
3rd owner
2012 Chevrolet Camaro SS
6.2L V-8, 6 speed manual transmission
Engine and suspension mods by Vengeance Racing
Original owner