DTC Description

P2251 is set when λ sensor virtual ground is open for more than 2.0 sec. This DTC is due to λ sensor virtual ground open or faulty component.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Signal monitoring

1.

Virtual ground open

2.

Faulty Lambda Sensor Unit

Enable Conditions

Engine running

Lambda sensor unit heating

Threshold Value

Virtual ground is open.

Fail Safe

Fuel Cut

NO

EGR Off

NO

Fuel Limit

NO

Check Lamp

NO

Яндекс.Метрика