P20E1

Exhaust Aftertreatment Fuel Pressure Sensor Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine Light Is On
Deterioration of the exhaust gas cleaning system
Possible problems with diesel particulate filter regeneration
Increased fuel consumption
Reduced engine power

Causes

Fuel pressure sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Contact corrosion
Problems with the engine control unit

How to Fix

Check the integrity of the sensor wiring
Check the contacts in the sensor connector
Check sensor resistance
Replace the fuel pressure sensor if necessary
Check the operation of the engine control unit

Related codes

P20E0 P20E2 P20E3