TheDieselPage.com Forums  
2014 - TDP's 19th Year
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   TheDieselPage.com 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 engine specific topics.

Reply
 
Thread Tools Display Modes
  #1  
Old 02-24-2010, 08:52 PM
TomJ01 TomJ01 is offline
Enthusiast
 
Join Date: Feb 2009
Location: Nevada
Posts: 26
Default PO234 Engine Overboost Control

2001 D-Max. I am experiencing PO234 when towing my RV (10K lbs) uphill. I have had the boost monitor replaced. The truck does fine until I near the shift point for 5th gear. My boost gauge reads 15 - 17 lbs. The throttle is removed until the truck slows to around 40 mph.

I have had the Code PO234 several times and it is the only Code I get. I had a PCM reflash in 2004, which solved this problem or one very much like it. All intake connections have been verified as good.

Would another reflash of the PCM be helpful? Is there a newer version of software for the PCM or can it revert somehow, back to a prior level (Glitch)? What else should I look for or do to solve this pesky event?
Reply With Quote
  #2  
Old 02-25-2010, 09:29 AM
Kennedy Kennedy is offline
Long Distance Crew Chief for BMDMAX
 
Join Date: Mar 2000
Location: Loyal WI US
Posts: 10,169
Default

The 2001 is just an odd duck. Some get these codes with a limp mode, some just limp and no code and some have no issues. Some get these issues popping up later in life. The best I can say is that some of these trucks are right on the limit of the OE parameters.

The answer is quite simple and that is in non OE programming updates. I have done quite a few of these 2001's and have yet to have any repeat issues. I just did one locally here this morning.
__________________
Kennedy Diesel-owner
More than just a salesman-I use and test the products that I sell on a daily basis!
Superflow Lie Detector in house
2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
2005 Chev K3500SRW D/A CC Long LT(SOLD)
2007 Chev K2500 Classic EC Short LT
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.

Custom tuning in house using EFI Live tuning software!
Reply With Quote
  #3  
Old 03-02-2010, 06:02 PM
TomJ01 TomJ01 is offline
Enthusiast
 
Join Date: Feb 2009
Location: Nevada
Posts: 26
Default Thanks Kennedy

What is the best way for me to locate someone with the knowledge and equipment to do the needed "non OE" program revisions? I am in the Yuma, AZ area now and will soon be towing my RV to the Las Vegas area.
Reply With Quote
  #4  
Old 03-02-2010, 06:15 PM
NutNbutGMC
Guest
 
Posts: n/a
Default

Quote:
Originally Posted by TomJ01 View Post
What is the best way for me to locate someone with the knowledge and equipment to do the needed "non OE" program revisions? I am in the Yuma, AZ area now and will soon be towing my RV to the Las Vegas area.
Click on the "Kennedy Diesel" link in Kennedy's signature line (above). He can assist in most cases.
Reply With Quote
  #5  
Old 03-03-2010, 08:07 AM
Kennedy Kennedy is offline
Long Distance Crew Chief for BMDMAX
 
Join Date: Mar 2000
Location: Loyal WI US
Posts: 10,169
Default

On my web site click on Kennedy Custom.
__________________
Kennedy Diesel-owner
More than just a salesman-I use and test the products that I sell on a daily basis!
Superflow Lie Detector in house
2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
2005 Chev K3500SRW D/A CC Long LT(SOLD)
2007 Chev K2500 Classic EC Short LT
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.

Custom tuning in house using EFI Live tuning software!
Reply With Quote
Reply

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 04:02 PM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 1996-2014 by TheDieselPage.com - All Rights Reserved