P20E8

Reductant Pressure Too Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$39–278 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
SCR error message on dashboard
Unusual odors from the exhaust system

Causes

Leak in the reducing agent injection system
Reductant pump malfunction
Reductant pressure sensor malfunction
Dirty or clogged nozzle
Problems with wiring harness or connections

How to Fix

Check the system for reducing agent leaks
Check the operation of the reducing agent pump
Check pressure sensor readings
Clean or replace the reducing agent injection nozzle
Check electrical connections and wiring harness

Related codes

P20E9 P20EA P20EE