got a mass air flow sensor code

[jayjay]

the check engine light coded 24 and 31. Mass air flow and air temp control.

Air temp I guess is part of the mass air flow.

I swapped mass air flow and same problem.

I need to know the input and out put voltages at the mass air flow and at the ECU to test .

Does anyone know this info ?

thanks
jay

 

[Nick M]

Typical Toyota is to share the filtered ground (E2). Do you have the EWD for EFI control?

 

[shoob]

enlighten me please.