P0101 2004 Toyota Highlander -rua

Question

Replaced Maf sensor and still code coming up. Cannot get check engine light to clear

Answer 1

P0101 MAF circuit range perfromance problem

Is there any other code with this ? How the MAF aiflow air duct , no tear on the air duct? You may just need to get another MAF sensor

 

 Here is a Toyota Pick up that had a P0171 ( Fuel trim lean Bank 1)  and a P0101,  Someone did a exhaust leak right before the 02 sensor 1. which is the upstream 02 sensor. or the engine managment sensor. What happen here is right before the 02 sensor there was a exhaust leak, not a large one just slight, the fix was to repair the exhaust leak right at the 02 sensor, Once that leak was fixed the P0101 went away. and so did a P0171 , That why it is important to know if there is any other code with P0101.