Egr valve does not cause stalling. it does not open at idle. I would look at oxygen sensor, then check the gas for water. The EGR can be cleaned, but my EGR valve is 10 years old and did not need cleaning. Also look at plugs and wires.
it's a common problem for proteges5, the EGR valve needs to be cleaned
A deceleration valve is a device that controls the rate at which an engine returns to idle speed after the throttle is released. It helps prevent stalling and contributes to smoother engine operation during transitions from acceleration to deceleration.
The likely causes would be 1) plugged EGR valve: The valve gets plugged with carbon deposits over time and needs to be cleaned out. 2) a cracked air intake hose: The cracked hose causes air leakage which throws off the Mass Airflow Sensor, which when sending erroneous information to the computer can cause serious hesitation and stalling at idle.
The drain on a Mazda B4000 radiator is typically located at the bottom of the radiator on the passenger side. It usually consists of a plastic or metal valve that can be opened to allow coolant to drain out. To access it, you may need to raise the vehicle and ensure that the engine is cool to prevent burns. Always have a container ready to catch the coolant when draining.
Have you tried replacing the PCV valve?
On the 4.0L 1994 B4000 it is located on the driver's side valve cover; towards the rear of the engine. Be aware that it may not have the plastic "L" on it so if you purchase a new one with the plastic "L", soak it in warm water for an hour to soften the plastic then pull the "L" off with a pair of pliers.
Replace your IAC Valve-No more stalling
Carb.? bad needle seat valve? Float needs adjustment?
Yes, a malfunctioning EGR (Exhaust Gas Recirculation) valve can cause a car to stall. If the EGR valve is stuck open, it can lead to an excessive amount of exhaust gases entering the intake manifold, disrupting the air-fuel mixture and causing rough idling or stalling. Conversely, if it's stuck closed, it can result in increased combustion temperatures and knocking, which may also lead to stalling. Regular maintenance and timely repairs can help prevent these issues.
Try replacing the idle air control valve (IAC)
Depending on the engine, on the throttle body, there are two sensors. One is the throttle position sensor, and the other is the idle air control valve. Usually the latter can be cleaned if your car is experiencing stalling, but both can greatly affect the idle speed
idle control valve is shot!!