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.
If you mean PO660 it is Intake Manifold Tuning Valve circuit Malfunction. Click the link.
you needs a dpfe sensor
You need OBD2 reader or scanner to get the codes
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.
In the USA, the Protege was available as a DX, LX, or ES. The DX and LX have the 1.5L engine, and the ES has the 1.8L. In Canada, there was only the SE and LX. The SE had the DX and LX drivetrain, that is to say the 1.5L engine mated to either an automatic, or 5-speed manual transmission. The was the equivalent of the American ES model. The quickest way to identify a car packing the 1.8L engine, without popping the hood is to take a peek under the rear. The 1.8L models came with a rear sway bar from the factory, and the 1.5Ls did not. 1998 MAZDA PROTEGE 1.5L 4-cyl Engine Code Z5D 1998 MAZDA PROTEGE 1.8L 4-cyl Engine Code BP DOHC