как избавиться от ошибки P0138

[darkcorp]

Подскажите по ошибке p0138 - это дохлая лямбда или кат? Ставить новый датчик или обманку?

Нашел такую фразу:

P0138 is high voltage code from downstream O2 sensor, usually indicates that sensor isn't putting out normal varying voltage signal based on O2 content of exhaust stream after the cat, so PCM substitutes a fixed 1V. Typically caused by a bad O2 sensor, could also be caused by faulty internal heater or wiring to downstream O2 sensor.