2018 - TDP's 22nd Anniversary
What's New: | Feature Articles: | Product Reviews: | Member's Area: | Subscribe:
Duramax 6600 Diesel Page | Advertiser's Section | Classified Ads | Photo Album | Diesel Books, GM Licensed T-shirts

Go Back Forums > Chevrolet & GMC 2500HD/3500 Light Trucks > Duramax 6600
Register FAQ Members List Photo Album Mark Forums Read

Duramax 6600 Discussion Forum for the Duramax 6600 Diesel Engine, including the LB7, LLY, LBZ, LMM & LML engine specific topics.

Thread Tools Display Modes
Old 09-11-2017, 08:31 AM
chessy56 chessy56 is offline
Join Date: Jan 2006
Location: South Milwaukee, WI
Posts: 203
Default P10D1 code- L5P DMax

Just a heads up for those of you who have gotten the new L5P DMax with your 2017 P/U. I started getting code P10D1 and was experiencing constant Regens- as soon as one Regen would end, another would begin shortly after shutting down and later restarting my truck. The code would appear in my Edge diag monitor and without any intervention from me, would disappear on its own. No check engine indicator came on.

Dealership tech said that this code applied to numerous possible faults- including the DEF system. GM has new calibration s/w for both the PCM and TCM. I had my truck reflashed- so far; it isn't going into continuous Regens (again, "so far".....)
So. Milwaukee, WI
'01 2500HD, LB7, 440K miles
"Stock" engine. Dual fuel filtration system with Kennedy lift pump, BF Goodrich Commercial T/A Traction tires

'17 2500HD, L5P (Happy Birthday/Merry Christmas to me!!! Not excited about loan and insurance costs though...)

"Socialism is a philosophy of failure, the creed of ignorance and
the gospel of envy. Its inherent virtue is the equal sharing of misery."
Winston Churchill

Last edited by chessy56; 09-11-2017 at 08:33 AM. Reason: adding CE notification
Reply With Quote
Old 10-10-2017, 12:45 PM
More Power's Avatar
More Power More Power is offline
Join Date: Feb 2000
Location: Big Sky Country
Posts: 10,267

During the first 6 months, following the introduction of the Duramax in late 2000 (2001 model year), GM produced a number of ECM re-flashes to correct some problems that appeared once sufficient numbers of the trucks were in use. Narrowing/widening tolerance windows was a key area, as trucks were producing DTCs when they shouldn't or weren't producing a DTC when they should.

Your report sounds a lot like that. The newest emissions system calibration matrix apparently needed some fine tuning. You did the right thing by taking the truck in for service. Constant regens couldn't be all that helpful....

Thanks for the report.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -7. The time now is 12:39 AM.

Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright 1996-2018 by - All Rights Reserved