Where is the ECM located on 05 gmc Duramax ? Looking to replace it with a programed ECM

When you replace the ECM or disconnect the battery, you have to reset the Security System and Engine Immobilizer.

https://www.google.com/search?q=2001+gmc+yukon+security+system+reset

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Dodge Ram 3500 Questions - I have an 05 ... - CarGurus

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CarGurusAug 28, 2012 - I'm getting a code P2149 fuel injector group B supply volt... ... I'm getting a code P2149 fuel injector group B supply voltage circuit/open. ... 2005 dodge ram 1500 won't move when in gear 38 answers.

Question on codes p0202 and p2149 - Chevy and GMC Duramax Diesel Forum

www.duramaxforum.com > ... > 04.5-05 LLY Duramax Powertrain

Dec 5, 2009 - 6 posts - ‎4 authors
Hi got a 05 3500 running really ruff and throwing 2 codes p0202. ... Number #2 injector Drive fault, incorrect current on a fuel injector circuit (the ...

breaking down on freeway code p2149 - Chevy and GMC Duram

Are any light's lite on dash ? check engine ? There are a lot of electronic components on these vehicles. Fuel Injector Control Module for one. Crank sensors,
fuel rail pressure sensor , engine computer (ECM) and you should have a professional grade scan tool to work on these vehicles . You could look on YouTube, there are a lot of guys that post auto repair videos there, even ones on diesel's with no start problems.

Hi Lone Ranger,

The first link offered has information to set you up US Diesel Parts Fuel Pumps Injection Pumps and Injectors GM Duramax LB7 . Now on to the location. Here is a quick feed to watch duramax cp3 pump swap . Lets finish with this gentleman's input and contribution. Duramax cp3 high presure fuel pump removal .


This will provide a look and see distant generalization of what you may be getting into and some live experiences of those who did. Fare. Well.

run fault codes and check for throttle position sensor.

Here's a link to the code,Your boost sensor apparently malfunctioned or possibly sent a signal (for whatever reason ) that the ECM interpreted as a out of range signal . In this case the sensor signal was too high . I would personally clear the codes from the ECM and operate the vehicle under various driving conditions (especially acceleration under load conditions which would engage the turbocharger ) to see if the code resets again . If it does, I would replace the sensor . However , if it does not reset , and no other codes occur it could've been an intermittent malfunction or possibly a glitch in the ECM parameters which does occur from time to time in any computer .

They will deefinitely providing the 2 are the same model. In 2004 the Allison tranny was available in a 5 or a 6 speed. Before 2004 only the 5 speed was used. If one is changed for the other there will be shifting issues and codes set in both the ECM (engine control computer) and TCM (transmission control computer). Make sure you are putting in a 5 speed Allison tranny.

Follow this link. Hope it helps. Good Luck.
http://www.duramaxforum.com/forum/04-5-05-lly-duramax-powertrain/106-trouble-codes.html

05 duramax injectors have gone bad I'm told because the ecm has gone bad. Is this the case or I'm I being told a crock? They say it needs 4 injectors. While I was driving down the road it started missing and then it would quit and start missing again. After about 6 miles it died. After changing the fuel filter and priming the system it would not start unless assisted with gas vapor. It will run for a few seconds (20 or so) very rough with no power at all and then would die. Does Chevrolet have any recomendations or will they give any assistence with this problem. I don't think I'm the first person that has had injector problems with the Duramax .

Thanks
Mike
Wheeler

This sounds like an issue a transmission shop will need to repair.