Terms memorize DTC (P0133 code)

The engine control unit makes to the memory code P0133 and warning light illuminates the engine management system, if the two driving cycles, the ECU does not define the parameters described below.

1. Within 2 minutes, the computer must determine the compensation factor of the fuel component of the mixture is greater than 85% or less than 95%.

2. The computer must perform some correction of the air-fuel mixture when:

- The engine speed is in the range 1600-3200 ^min -1;

- The engine load is within 1,35-3,4 ms;

- Temperature of the catalyst above 372 ?� C;

- The system is in closed loop control.

The output of this code indicates that the computer does not properly adjust the composition of the fuel and airy-mixture signals of the front oxygen sensor or adjust it to the desired frequency after warming up the engine or during normal operation of the engine.