EAS3 Peterbilt EAS3 Paccar MX EGR Removal Emulator
Plug-and-play EGR removal emulator for Peterbilt trucks with Paccar MX-11 and MX-13 engines — permanently eliminates EGR valve sticking, soot clogging and power derate from stop-and-go use.
The Peterbilt EAS3 EGR Removal Emulator is built for Peterbilt trucks and vocational vehicles running Paccar MX-11 and MX-13 engines, where the EAS3-generation control unit manages the Exhaust Gas Recirculation system. In regional distribution, construction-site and stop-and-go city work, frequent idling and low-speed running quickly coat the EGR valve in soot: the valve sticks mechanically, flow feedback turns inconsistent, and the EAS3 ECU pulls the truck into a protective derate that cuts power and speed in the middle of a loading run. Engineered by Hedef Emulator, this plug-in module continuously simulates EGR valve position, differential pressure and EGR cooler temperature signals so the ECU reads the system as healthy at all times. No fault code is generated, no derate is triggered, and the engine keeps running at full rated output.
How Does It Work?
The emulator connects directly to the truck's original EGR harness connector — no cutting or soldering — and can be removed at any time to restore the factory setup. It continuously outputs EGR valve position, differential pressure feedback and EGR cooler temperature signals within the range the EAS3 ECU expects, even through frequent idling and low-speed running. The control unit reads the EGR system as fully functional, so no fault code is raised, no protective mode engages, and the engine keeps running at full power.
Frequently Asked Questions
Does this emulator work with both the Paccar MX-11 and MX-13 engine?
Yes, the emulator is designed for both Paccar engine families. We recommend confirming the vehicle-specific EAS3 ECU version against your VIN before ordering.
Does frequent idling on a construction site or delivery route affect this product?
No. Because the emulator outputs its signal continuously, the EAS3 ECU reads the EGR system as normal even under frequent idling and stop-and-go use.
Does this product touch AdBlue, SCR or DPF?
No. This product covers the EGR system only; it does not affect AdBlue, SCR, DPF or NOx sensors in any way.
What are the shipping and warranty terms?
The product ships from stock with free worldwide shipping and is covered by a 2-year warranty.
Supported Models
This emulator is compatible with the following models that share the same ECU platform:
