Vacuum Hose Sanity Check

[broncc]

Hello. This is a 94 motor sold in New York. Could someone with a 50 state emissions OHV motor please provide me a quick summary on how their EGR system is hooked up? Specifically the two hoses to the pressure sensor and the solenoid to the diaphragm? I think mine are correct, and I have a bad valve or something in my system.



I am so close to hitting 20mpg in the Bronco! I want to squeeze out every last bit of economy. On a super hot day doing 55mph I got 19.4.

 

[franklin2]

This is for a 94. See attached illustration.


The Exhaust Gas Recirculation (EGR) system is designed to reintroduce exhaust gas into the combustion chambers, thereby lowering combustion temperatures and reducing the formation of Oxides of Nitrogen (NOx).

The amount of exhaust gas that is reintroduced into the combustion cycle is determined by several factors, such as: engine speed, engine vacuum, exhaust system backpressure, coolant temperature, throttle position. All EGR valves are vacuum operated. The EGR vacuum diagram for your particular vehicle is displayed on the Vehicle Emission Control Information (VECI) label.

The EGR system is a Pressure Feedback EGR (PFE) or Differential PFE (DPFE) system, controlled by the Powertrain Control Module (PCM) and composed of the following components: PFE or DPFE sensor (also referred to as the backpressure transducer), EGR Vacuum Regulator (EVR) solenoid, EGR valve, and assorted hoses and tubing.

 

[franklin2]

Can't tell too much from this picture.

 

[broncc]

This is for a 94. See attached illustration.

This is what I was looking for thank you.