Yes it will since the fault gives the ECM (computer) and the TPS sensor (Throttle position sensor) bad values. The EGR might do it but the MAF will def. do it and it will also prevent the car to start normally if it is faulty. Hook a paper clip in the dignostic module (near the fuse box in the engineroom) between the GND and TST (Look on the inside of the lid for wich is wich) and then go to the drivers seat and turn the ignition on. Calculate how many times the "Check Engine" light goes on.
A long means 10 and a short means 1, add them together and make a note eg. 25 means "Fuel Pressure Regulator" and 41 means VRIS#1. Go on Google and make a search for OBD +error codes and you should get an answer quite quickly on what sensors and such are faulty.
no
More than likely you need to replace the Mass Airflow Sensor also.
a bad idle sensor control valve to start with or your egr valve has a vaccum leak
If it is part of the valve stem, yes.
yes
From what I understand , it is the sensor that the Powertrain Control Module uses to determine exactly how much the EGR valve opens at all driving conditions
its a Mazda engine . ( DOHC 4cyl. 16 valve 2.0l ) For the probe 1993
I would suggest that something is wrong with your vaccuum system like a leak somewhere. You may also have a faulty MAP sensor.
no.check ure idle control valve
A bad EGR valve can cause this smell. Or defective O2 sensor.
On the 4 cylinder models, it is on the passenger side of the valve cover.
likely the egr valve and /or sensor is bad