Code P 0171

[Daviem]

Hi All, hope someone can help, keep getting code p0171, changed both O2 sensors, MAF sensor and air filter but, the code keeps returning after about 30-40 miles.

This is on a Yaris 1300 T Spirit 2011 plate

Regards Davem

 

[flash22]

It's more than likely a vacuum leak, A smoke test will be the easiest way to find it there are other methods, but they can be hit or miss

i see you have shot gunned parts at it

[stantheman1]

On 9/16/2020 at 4:51 PM, Daviem said:

Hi All, hope someone can help, keep getting code p0171, changed both O2 sensors, MAF sensor and air filter but, the code keeps returning after about 30-40 miles.

This is on a Yaris 1300 T Spirit 2011 plate

Regards Davem

 

Do you have the freeze frame data from the P0171 code?