exhaust gas recirculation flow insuficient
Trouble code P0401 means:Exhaust gas recirculation-insufficient flow detected
Click the link.
Trouble code P0171 means:System too lean (bank 1)
Trouble code P0171 means :System too lean (bank 1)
you will have to get from Mazda or buy a used one
PO401 indicates an abnormal EGR flow.
You need OBD2 reader or scanner to get the codes
you needs a dpfe sensor
If you mean PO660 it is Intake Manifold Tuning Valve circuit Malfunction. Click the link.
Trouble code P0768 means: Shift solenoid D electrical problem
It means there is bad/no connection between the car's computer and the oxygen sensor after the catalytic converter.
P0455 code for mazda Protede... Evaporative Emission System Leak Detected (gross leak/ no flow)