Why does DTC fail on a Duramax Diesel?
Why does DTC fail on a Duramax Diesel?
The engine control module (ECM) monitors the exhaust gas temperature (EGT) sensor 1 to determine if the operating temperature of the catalyst is achieved during a regeneration event. When the ECM detects that the DOC is not reaching a pre-determined temperature during an active regeneration event this DTC fails.
What are the diagnostic codes on a Chevy Duramax?
Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. These are stored in response to a problem found in the truck by the system. Here is a list of Chevy Duramax diagnostic codes to help you in figuring out what is wrong with your vehicle.
What kind of transmission does a Duramax diesel use?
It was the first to come bolted to the six-speed Allison transmission which provides a lower cruising RPM and greater fuel efficiency when compared to the five-speed on the LB7 and LLY.
What does the Doc do on a Duramax Diesel?
Diagnostic Procedure Instructions provide an overview of each diagnostic category. The diesel oxidation catalyst (DOC), main function is to control emissions of Non Methane Hydro Carbons (NMHC)and soluble organic fraction (SOF).
What’s the DTC code on a Chevy Duramax?
It’s going to the dealer as it threw the “service engine” light again 2 days later. SamJ – The DTC codes are not easy to understand, even for someone who has spent many years working on trucks.
It was the first to come bolted to the six-speed Allison transmission which provides a lower cruising RPM and greater fuel efficiency when compared to the five-speed on the LB7 and LLY.
Why is my Duramax diesel engine not working?
The trucks computer keeps track of how much fuel needs to be added or subtracted from each individual cylinder to make the engine run smoothly, and this value is called the balance rate. If one cylinder is contributing too much or not as much as the rest, the cause is usually a bad injector and the cure is a replacement.
Where are the trouble codes stored on a Chevy truck?
Chevy/GM Duramax Diagnostic Trouble Codes (DTC) Diagnostic trouble codes (or fault codes) are codes that are stored by the on-board computer diagnostic system. These are stored in response to a problem found in the truck by the system.
