What does engine protection torque derate mean?

What does engine protection torque derate mean?

A derate means that the program inside the engine computer limits either the power or vehicle speed. A derate is designed to protect you from causing engine or DPF damage. A derate can be caused by various sensors or systems.

What does increased derate mean?

Engine derating is the reduction of an engine’s output due to less-than-ideal operating conditions. Derating sometimes is done intentionally when you want to prolong the engine’s life and avoid substantial wear or damage.

What does aftertreatment SCR operator inducement mean?

This code is an inducement associated with an emissions system fault. The engine is derated, limited to low idle, and can experience 5 minute rolling shutdowns. Probable Causes – Codes in the “Selective Catalyst Reduction System” ECM.

How long does a regen take?

A forced regen occurs when soot builds up inside the diesel particulate filter (DPF) to the point that the vehicle is no longer operable. When this happens, a driver has to pull over and initiate a self-cleaning process that can take up to 40 minutes — valuable time that could have been spent on the road.

How does SCR aftertreatment work?

Selective Catalytic Reduction (SCR) is an advanced active emissions control technology system that injects a liquid-reductant agent through a special catalyst into the exhaust stream of a diesel engine. It is called “selective” because it reduces levels of NOx using ammonia as a reductant within a catalyst system.

What does 25 derate mean?

In general, a derate means that the car engine computer program is limiting the vehicle speed or power. It is designed to protect you from causing any engine or diesel particulate filter (DPF) damage. The engine continually attempts to clean the DPF as you are driving down the road.

What is the cause of the fault code 3712?

CODES REASON EFFECT Fault Code: 3712 PID(P), SID(S): P105 SPN: 5246 FMI: 0 Lamp: Red SRT: Aftertreatment SCR Operator Inducement – Data Valid But Above Normal Operational Range – Most Severe Level. Critical SCR related fault codes have been active for an extended period of time and require immediate attention. Immediate engine power derate.

What are the fault codes for Freightliner M2?

Multifunction Turn Signal Switch Disagreement–Both wiper high and wiper low inputs are on. Unknown Keep Awake Fault–Modules are kept awake. Headlamp Switch Disagreement–Both park and on inputs are closed.

What does the code 3712 on the ECM mean?

This fault code is for information only, and indicates that an engine power derate and vehicle speed limit have been implemented in order to make sure that the critical SCR related fault codes that are presently active in the ECM are addressed as quickly as possible. Refer to Troubleshooting Fault Code 3712.

Are there NOx codes 3712 and 3714?

Hey nick you answered a question for me last week and I changed the nox sensor & still have codes 3712 &3714. They are active&won’t clear … read more Vocational, Technical or Tra… 20014 freightliner m2 with a cummins eng dtc spn5246. Vocational, Technical or Tra…