P1148 - subaru

Question

1998 Subaru Impreza Outback

Scanned and extracted trouble code P1148. The engine was just replaced and the vehicle instantly loses all power for a moment over bumps. What is the definition of P1148?

Answer 1

P1148 Closed loop control function Bank 1

Subaru does not use P1148 this does not mean its not valid. The best way to deal with this condition is to eliminate componenets that can influence this condition such as cracked MAF (mass airflow) intake boots, vacuums leaks that can influence the pressure sensor (MAP) sensor.