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383 posts · Joined 2019. #2 · Jan 16, 2024. you can't bypass the DEF codes. the other issue is your DPF system, if it doesn't clear with a regen, it may need to be replaced or cleaned. there is a thread on here that explains cleaning the filter with chemicals. otherwise it needs to be cut out cleaned and re-installed.Share. BalderVerdandi. • 2 yr. ago. EFI Live or EZ Lynk will be your best options to "turn off" the DEF system. You can do what's called a "California delete" - remove the spring and plunger on the intake side, unplug the electronics on the engine, remove the DPF and replace it with a piece of 4 inch exhaust pipe (some include this with their ...Here goes: 2016 LML completely stock. 14k. My DEF showed it was at 15%. I put in one jug (2 1/2 gals). Approximately 10 miles later, the "Service Exhaust Fluid System" warning screen, and the "99 miles until 65MPH," along with the engine light, and the DEF light. I can imagine that the truck was getting an incorrect signal, since I just put …Here’s how the system tackles this: When diesel fuel burns in the engine, it creates NOx gases. These gases move through the exhaust system and, just before reaching the SCR catalyst, the fluid is injected. The heat in the exhaust turns DEF into ammonia. When the ammonia mixes with NOx in the presence of the SCR catalyst, a …5 gallons of DEF should last for 5,000 miles. It is 1% to 1.5% of the fuel burned so it depends on the trucks MPG which depends on the load it carries and the speed at which it is driven. GM puts in 2 gallons at the factory. The dealer is supposed to add another 3.5 gallons.Apr 11, 2018 · 566 posts · Joined 2013. #2 · Apr 12, 2018. If the pump module was replace, you need to perform the Tech-2 Reductant System Reset. Each one of the three DEF heaters needs to be commanded on for 10 seconds. 2013 Chevrolet 2500HD LTZ Z71. 2011 Diesel Exhaust Fluid (DEF) DIC Messages: Service Exhaust Fluid System (Tamper): This message displays when a DTC sets related to the DEF system that is interpreted as tampering with the system. A detailed warning strategy is explained in SI Document 2410875. Exhaust Fluid Quality Poor: This message displays when the exhaust fluid is of ...1386 posts · Joined 2015. #8 · Nov 22, 2015. its almost guaranteed sensors on a 2011. They can force a regen at the dealership to burn off whats in the DPF. 2016 GMC 3500HD Denali CCLB - 27,035 miles. 2015 GMC 2500HD SRW/CCLB 39,368 miles- SOLD. 2011 CHEV 2500HD SRW/CCSB 133,597 miles - SOLD.EMPTY message appears, it may. take several km/miles for the DIC. message to update. If the vehicle speed has been. limited and DEF has been added, it may take up to 30 seconds. after engine start with the vehicle. stopped for the EXHAUST FLUID. EMPTY message to clear.Issues with a dog’s respiratory system or heart can cause a dog to cough up clear fluid, or mucus, according to PetCareRx. Dogs may also cough up clear fluid when experiencing prob...INFORMATION. This vehicle is equipped with a DEF Quality sensor that is integrated into the DEF tank. The value of this sensor can be read in the reductant data as the Reductant Concentration. If this concentration falls below 26%, the Exhaust Fluid Quality Poor message will be displayed on the DIC. The NOx Catalyst Reductant-Load Adaptive ...For a DEF quality code to clear, it has to run and successfully pass the Reluctance Fluid Quality Test. This is a running stationary test done with the factory …A system tamper service bay test might clear it. Do a manual regeneration clean it up. Then it has to pass a DEF fluid quality test. If you can keep driving it, the ECM will run the tests and either clear the message or turn the light back on. It has to see the system working normal for the message to clear."If any of the codes listed below are present, all of the codes in the same group or "bucket" must run and pass before the Reductant Fluid Quality Test (RFQT) or Reductant System Malfunction Warning Test will run and pass to turn off the Service Exhaust Fluid System message or the Service Emission System message.We would like to show you a description here but the site won’t allow us.Nov 12, 2017 · Service emissions message. We've had our 2015 3500HD for about a year now. First diesel I've owned. Changed the fuel filter today for the first time. After taking quite a few times priming it is got it to start. Upon starting it now reads on the dash service emissions see owner's manual 175 miles until 65 mph max.

566 posts · Joined 2013. #2 · Apr 12, 2018. If the pump module was replace, you need to perform the Tech-2 Reductant System Reset. Each one of the three DEF heaters needs to be commanded on for 10 seconds. 2013 Chevrolet 2500HD LTZ Z71.10 posts · Joined 2017. #4 · Mar 31, 2017. According to Dennis Dillon techs who are (supposed) to be GM certified. They said there is no DTC errors. Those were cleared. #2 NOx sensor replaced and on the DIC portion it shows def fluid quality poor and shows speed restriced to 55mph.The Duramax diesel engine available on 2011-2016 GM full-size trucks and vans requires injection of Diesel Exhaust Fluid (DEF) as an integral part of the exhaust after-treatment process that reduces emissions. DEF is a colourless, clear solution of water and nitrogen-based urea product that has 32.5 percent urea by weight.5 gallons of DEF should last for 5,000 miles. It is 1% to 1.5% of the fuel burned so it depends on the trucks MPG which depends on the load it carries and the speed at which it is driven. GM puts in 2 gallons at the factory. The dealer is supposed to add another 3.5 gallons.The good news is that you can reset the exhaust fluid system and clear the service DEF message in 7 simple steps with the help of a scan tool. In the dashboard, connect the scanner to the scan port

A 2012 GMC 2500HD with a LML (160,000KM on engine). I had just recently replaced the coolant o-ring in the flywheel housing cause one was leaking coolant. Once the repair was complete the service emission system message appeared in the IP but no codes are set. A successful service regen was done with a tech 2, and no codes set …Dec 18, 2022 · You will first need to disconnect the battery wires and then remove the cover of the CCU. Once in, use a multi-meter to check for voltage at pins J1 (map sensor), B1 (engine control module or ESM), and K1 (fuel injection). If any of these readings are low, then you will need to clear the code by removing and replacing resistor R3. …

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. They have companies that will clean the dpf and CAN for under 800.00. Possible cause: Message was still on the DIC, but I drove around gently for about 20 miles, w.