To find the relevant sensor, you need to know what system it's part of. The most likely candidates are components related to:
* Exhaust Back Pressure: This would be measured by a sensor monitoring pressure in the exhaust system. The location varies significantly depending on the year and engine. It might be located in the exhaust manifold, close to the catalytic converter, or even in the exhaust pipe itself. It's often a single pressure sensor, not a differential one. Look for a sensor with a single wire connected to it near the exhaust manifold.
* Turbocharger (if equipped): Turbocharged E-150s might have a pressure sensor for the turbocharger itself, monitoring the pressure before and after the turbo. This could be considered a differential pressure sensor in a way, but it's specifically for the turbo system. Location would be in the turbocharger system piping.
* Diesel Particulate Filter (DPF) - if a diesel engine: Diesel Econolines use DPF systems which employ differential pressure sensors to monitor the pressure drop across the filter. This sensor is typically located in the exhaust system near the DPF.
To find the correct sensor:
1. Determine the Year and Engine: This is crucial. The location and type of sensor will vary greatly by year.
2. Consult a Repair Manual: A factory service manual (FSM) specific to your van's year and engine is your best resource. It will show you diagrams and precise locations. You can often find these online through sites like HelmsInc.
3. Use a Diagnostic Tool: An OBD-II scanner can sometimes identify sensor issues and provide sensor location information.
4. Check Online Forums: Search online forums for Ford Econoline owners. Someone might have dealt with a similar issue and described the sensor location.
Without the year and engine details, I cannot give a precise location. Providing that information will greatly assist in finding the correct sensor.
