You may have bacteria growing in the fuel. Warm temps, miosture = habitat.
Try cleaning the sensor if it comes back. Check the connections also.
Worst case, new sensor = $20.00 from the dealership.
En resumen:
1. Limpia el sensor, si borrando el error continua;
2. Compra uno y cambialo no llega a 20 euros.
Bookmarks