Emissions Solutions (SCR / DEF)

DEF pump, dosing valve, injector and SCR catalyst communication error remediation to halt recurring roadside derates.

Shokar Diesel's emissions solutions service clears the SCR and DEF communication errors that trigger 5 MPH countdown derates and roadside shutdowns on commercial trucks throughout Western Canada. We troubleshoot DEF dosing curves, heater lines, dosing valves, and SCR catalyst circuits, fixing freeze-up, crystallization, and pump motor failures at their source. The result is restored full engine torque, clean communication with your ECU, and a fleet that passes inspections instead of parking on the shoulder.