Join Date: Dec 2015
Location: Northern California
Here's what the GM Tech Link article for the 2.8 Duramax says
The normal regeneration process removes captured particulates through incineration within the EPF. Regeneration occurs when the ECM calculates that the particulate level in the filter has reached a calibrated threshold using a number of different factors, including engine run time, distance traveled, fuel used since the last regeneration, and the exhaust differential pressure.
In general, the vehicle needs to operate continuously at speeds above 30 mph (48 km/h) for approximately 20-30 minutes for a full and effective regeneration to complete. During regeneration, the exhaust gases reach temperatures above 1,022°F (550°C). If exhaust gas temperatures fall below a normal calibrated threshold, regeneration will be terminated and a corresponding DTC should set. If a regeneration event is interrupted for any reason, it will continue, including the next key cycle, when the conditions are met for regeneration enablement. Normal regeneration is transparent to the customer. The self-cleaning occurs approximately once per tank of fuel.
A scan tool is required for service regeneration. Commanding a service regeneration is accomplished using the scan tool output control function. The vehicle will need to be parked outside the facility and away from nearby objects, due to the elevated exhaust gas temperature at the tail pipe during regeneration. The service regeneration can be terminated by applying the brake pedal, commanding service regeneration OFF using the scan tool, or disconnecting the scan tool from the vehicle.
There are two regeneration Driver Information Center messages. “Cleaning Exhaust Filter Continue Driving”will appear on the DIC when an exhaust particulate filter cleaning is required. To clean the filter, drive the vehicle above 30 mph (50 km/h) until the warning message goes OFF. This will take about 30 minutes. When the “Cleaning Exhaust Filter Must Continue Driving” message is displayed, it is important to keep driving to clean the exhaust filter. This will take about 30 minutes.
2016 Canyon SLE diesel, Brownstone Metallic, Towing Package, etc.
Fold-A-Cover G4 Elite
Factory GMC front Mud Flaps
BigBoi Headlight Switch Mod
In the garage: 2002 Z06