I thought I had the problem solved. While driving the engine stalls?

Try cleaning your egr passages and clean iac hole as well. then check hoses for breaking apart.

This guide can help

https://www.2carpros.com/articles/stall-at-idle

Please go over this guide and get back to us.

Old lines can break, grit from pcv if line was bad, excessive heat, maybe wrong type of tubing this is vacuum schematic for a 4.3L tbi hopefully it is correct

No it won't vapor lock because of electric fuel pump. Broken plastic would do it though here is correct one

Check fuel pressure with a gauge auto parts rent it and then can scan for codes as well while there.

Cross A & B on connection under dash with a paper clip turn key on watch check engine light and count flashes. They will flash in series of three. 3-1's is 1 then 3-2's that mean 12 and so on if you only get 12 then verything is ok

Based on the information you've provided, it seems like you've taken some steps to address potential issues with the EGR passages and valve, as well as checking for vacuum leaks and broken lines. However, you're still experiencing problems with your vehicle.

If spraying carburetor cleaner into the throttle body causes the engine to react initially but then it returns to normal after a few sprays, it could indicate a problem with the fuel delivery system or a potential issue with the throttle body itself. Here are a few possibilities to consider:

Fuel delivery issues: It's possible that there's a problem with the fuel injectors, fuel pump, or fuel pressure regulator. If the fuel system is not delivering the correct amount of fuel, it can cause engine performance issues. Consider having the fuel system checked by a qualified mechanic.

Throttle body problems: The symptoms you described could be related to a dirty or malfunctioning throttle body. A dirty throttle body can restrict airflow and disrupt the air-fuel mixture, leading to rough running or stalling. Cleaning the throttle body thoroughly or considering a replacement might help resolve the issue.

Idle air control valve (IAC): The IAC valve controls the idle speed of the engine. If it's dirty or malfunctioning, it can cause erratic idling or stalling. Cleaning or replacing the IAC valve could be a potential solution.

Sensor issues: Faulty sensors, such as the mass air flow (MAF) sensor or the throttle position sensor (TPS), can also cause similar symptoms. These sensors provide crucial information to the engine control unit (ECU) for proper fuel and air mixture regulation. If they are not functioning correctly, it can lead to engine performance problems. Consider having these sensors checked or replaced if necessary.

In the 1995 Chevy S10 with a 2.2-liter engine, the camshaft position sensor is typically located on the front side of the engine, near the top of the timing cover. It is usually positioned just above the camshaft sprocket.

To locate the camshaft position sensor more precisely, you can refer to the vehicle's service manual or consult a reliable repair guide specific to your vehicle model. These resources often include diagrams and detailed instructions to help you locate and replace the sensor accurately.

If you're uncertain about performing the replacement yourself, it's recommended to seek the assistance of a qualified mechanic who can diagnose the issue and replace the sensor if necessary. They will have the expertise and tools required to ensure proper installation and functioning of the new camshaft position sensor.