Lmm ecm replacement

For the LB7 remove the black plastic pouch cover and remove the 2 metal clips. Use a 7mm socket to losen the bolts on the wireharness plug and remove the plug from the ECM. For the LLY The ECM will then slide of of the pouch. There is NO plastic cover. Disable your headlamps. Attempt to start the vehicle.

GM 19260758 Refurb LMM Duramax Diesel ECM Service #19260758 (07-10)

Vehicle may or may not 'fire' and quit. Some vehicles will not engage the starter. This is normal. Leave the key in the "on" position, until the 'security' light goes out or quits alternately flashing between "Security" and "Battery".

This relearn period always takes 10 minutes. How long does this take? How long do I have to wait? After security light is no longer displayed, shut the key off!

lmm ecm replacement

Wait seconds and repeat the above procedure steps 1 through 3 another two completed times for a total of 3 start-relearn-attempts, remembering to shut the key off between each 10 minute relearn procedure.

If the 4th start attempt fails to start the vehicle you did one relearn step or all of them incorrectly. If you left your headlamps on until the battery went dead and voltage dropped below Don't read too much into this. Most people overlook the simplicity of this relearn procedure.

Email: powerupdiesel gmail. This is the best way to guarantee delivery. The ECM is attached to the drivers's side battery tray and its does not take but a few minutes to replace without special tools.

The ECM is encased in a steel housing and we promise you that you won't damage it in the process!!!Our new search experience requires JavaScript to be enabled. Please enable JavaScript on your browserthen try again. Save duramax ecm to get e-mail alerts and updates on your eBay Feed. Unfollow duramax ecm to stop getting updates on your eBay Feed. You'll receive email and Feed alerts when new items arrive. Turn off email alerts. Skip to main content.

Refine your search for duramax ecm. Refine more Format Format. Items in search results Vehicle finder tool Find parts for your automobile Select a vehicle:. Search refinements Categories. Automotive Computer, Chip, Cruise Control Emission Systems 4.

Turbos, Nitrous, Superchargers 1. Everything Else 1. Format see all Format. All Listings filter applied. Buy It Now. Brand see all Brand. ACDelco Bosch 4. Chevrolet General Motors 5. GMC Brand Type see all Brand Type. Genuine OEM Aftermarket Branded Not Specified Warranty see all Warranty. No Warranty 8. Unspecified Length Every Chevrolet truck has an engine control module that manages the electronic components of the engine and monitors sensors for errors. Returning the ECM to its factory state may be necessary to troubleshoot or resolve a number of problems.

Remove the nut from the negative battery cable using a socket set or wrench. Slide the cable off of the battery and set it aside. Turn the headlight switch to the "On" position to drain the ECM of any remaining power. Wait at least 10 minutes, then turn it back to the "Off" position. Replace the negative battery cable by reversing the previous steps.

Tighten the nut until it feels secure, paying attention not to overtighten it. The ECM has now been reset. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Step 1 Remove the nut from the negative battery cable using a socket set or wrench. Tips If you find it difficult to keep the battery cable from touching the negative terminal, use a non-conductive material such as rubber as a barrier. The negative cable is the black one marked with a minus sign.

Warning Do not allow the negative cable to touch the positive one, or allow your tool to bridge the two terminals. Items you will need Wrench or socket set.

About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.Increased emission regulations began to alter the diesel landscape significantly in For GM, an updated version of the 6. Basically an LBZ saddled with an intricate exhaust after treatment system, the LMM remained architecturally similar to the Duramax mills that preceded it.

Despite the added complexities of the new emissions control system, GM was still able to increase power output and remain a step ahead of Ford and Dodge. The LMM Duramax brought hp and lb-ft of torque to the table along with its emissions equipment, including exhaust gas recirculation, a diesel oxidation catalyst and a diesel particulate filter. Its bore of 4. As is the case with most modern diesel engines, emissions-control devices account for the majority of premature failures.

The LMM is no different, with its labyrinthine-like exhaust after treatment also contributing to poor fuel economy, diluted engine oil and reduced long-term engine longevity. But outside of those shortcomings, the LMM came with several upsides. Fun fact: Every completed 6. In order to lower particulate matter emissions by 90 percent, the LMM came equipped with a diesel particulate filter DPF located down stream from the diesel oxidation catalyst DOC.

To keep the DPF from becoming chock full of particulate matter, a process called regeneration takes place, which effectively incinerates most of the soot buildup within the DPF. There are two forms of regeneration: active and passive. Passive regeneration occurs when the engine is producing sufficient heat to keep particulate matter low, such as in heavy towing or hauling situations.

However, the fuel required to perform an active regeneration cycle which occurs about once every fillup or roughly every miles traveled is the primary reason why the LMM-powered trucks took a hit in fuel economy.

The color touchscreen monitor allows you to see when the truck is in regeneration mode, as well as watch the soot accumulation reading from the DPF measured in grams on the bottom right. This meant more exhaust gas recirculation EGR would be necessary on the LMM, which called for a larger EGR cooler for increased cooling capacity and operational lifespan. The first step in trouble-shooting a leaking EGR cooler is often noticing that the engine is consuming coolant.

The name of the game in meeting particulate matter emission standards is to maintain sufficient heat in the engine. This means the engine needs to be under some sort of load at all times, and the intake airflow valve i. However, at idle, in stop-and-go traffic and cruising on the highway, EGT tends to drop considerably.

It is here that the intake airflow valve commanded by the ECM is used to restrict the amount of incoming air, thereby controlling combustion temperature more precisely. Although they retained the same basic body architecture as the units found in the LBZ and still saw 26, psi worth of fuel pressure, the Bosch solenoid style common-rail injectors in the LMM were equipped with revised nozzles.

Specifically, a six-hole nozzle with a degree spray angle on top of the piston was employed, whereas the LBZ injector had used seven-hole, degree nozzle. The same reliable Bosch CP3 high-pressure fuel pump was used for pressure creation—and it was still void of a lift pump supplying it fuel from the tank. The version aboard the LMM has slightly different internals due to its need to control the new emissions system, and it also communicates with the rest of the modules on the truck through an updated CAN bus system.Remember Me?

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Should I Repair or Replace My ECU / ECM?

Results 1 to 3 of 3. August 6th, 1. So I will need a new VIN license, yes? Thank you in advance! August 7th, 2. I'm not as familiar with Duramax stuff, but for GM gas stuff of that era, it's better to have a fresh flash with the correct segments for your vehicle from Tis2Web.

lmm ecm replacement

You would probably be ok finding a same year ECM and swapping it in, then finding a file that matches your VIN maybe your stock tune and segment swap the necessary segments to match things like System and Fuel tank come to mind.

Yes, licenses are tied to the specific controller serial so you will need a new VIN license. August 11th, 3. Adrian, if you are just replacing the ECM, we supply new and used replacements. You can send us the file you want in it, or we can install your factory file from the GM database.

If you want to play with it, you will need the new ECM serial number licensed. The efilive staff has been understanding about ecm failures if you want to license it. Michael, Systems Engineer Similar Threads Do I need to buy another tuning license for a replacement ecm?

New ECM? All times are GMT The time now is AM. All rights reserved.View Cart Checkout. The 6. GM was the first of the manufacturers to make this jump and gave GM an added advantage in the diesel truck market.

The common rail term comes from the fuel rail that is shared by all injectors. GM extended the warranty on the injectors tomiles due to failures that were widespread. Air bubbles in the fuel lines turned out to be the cause for the premature failure of the injectors.

When these air bubbles were present in the fuel line they accumulated in the CP3 pump. When the injector went to fire the bubble would get between the injector plunger and the injector tip. With the bubble there the injector plunger has no fluid damping when it comes into contact with the injector tip causing a small gap to form over time. The computer system was unable to determine if this is happening so the check engine light would not notified the driver.

The only way to determine if this was happening was to measure the return fuel flow rate. Search By Manufacture. Call for Pricing. Your Shopping Cart will be saved and you'll be given a link. You, or anyone with the link, can use it to retrieve your Cart at any time. Send Cart in an Email Done! Empty cart. Please add products before saving :. Then send it to yourself, or a friend, with a link to retrieve it at any time.

From Name. Have a look at this Shopping Cart sent by a friend via Diesel Experts. Send Cart Email. Your cart email sent successfully :.After you buy this computer, please send us a message via eBay messaging system with the following info needed for programming:. We cannot process your order unless we have the above information. This is an electrical part. If you have any questions about this part, please e-mail or call us before you buy. The returned part must be in the same condition as when we shipped it to you.

We do not pay return shipping charges. If you ordered the wrong part we will exchange it for the correct part if you pay the shipping. Unless expressly stated otherwise, this part is covered by a 1 one year warranty with an exchange of your core. The warranty is non-transferable.

You will recive an Invoice with the ECM, please save the Invoice, you will needed for warranty claim. This warranty does not cover any defects caused by misuse, collision, negligence, unreasonable use, flood or electrical damage, and improper installation or application. All warranty claims are subject to our approval. We assume no liability for labor, diagnostics, technical fees, towing claims, rental car charges, lodging, or any other direct or consequential damages arising as a result of this transaction.

Any questions, contact us via eBay messaging system or by calling Mon-Fri 9.

2007.5-2010 LMM ECM

Contact us via e-mail, phone, or eBay message and we will try our best to assist you. We carry software for international programming, but the internal structure of international parts may be substantially different than the US parts that we use.

PCM Replacement / Swap Silverado 2500 HD

Sorry for the inconvenience. No Forwarding Companies. No Resellers. At this moment we accept PayPal as our proffered method of payment. Have A Question? Today At Core MUST be returned with the Return Authorization Page within 14 days after receiving your replacement unit to validate your 1 one year warranty. Your acceptance of this part s constitutes acceptance of ALL of the aforementioned terms.

lmm ecm replacement

Item will be shipped by USPS after receiving the payment and the required info. Secure Shopping. The Auto Module Source Advantage. Exchange Process.

lmm ecm replacement

Once you receive your part from us, you have 14 days to send us your rebuild-able old part your core. You will be able to use the same box. Newsletter Sign Up Add to Favorites. Send eBay Message. This listing is for a Re-manufactured Dodge Ram Truck with 5. Your phone - just in case we need more info from you. Vehicle's VIN 3.


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