The EGR valve position (EVP) sensor can fail on this vehicle. The EVP sensor measures the EGR valve position and transmits the date to the engine control computer. If it fails, drivability and fuel economy can suffer, the Check Engine Light will commonly illuminate.
Car Problem Reports
Ford Crown Victoria EVP Sensor Failure May Cause Drivability/Fuel Economy Issues
Ford Crown Victoria Problem
Average Mileage: 137,666 mi (60,000 mi - 180,000 mi)
Visitor, 1997 Ford Crown Victoria, 180,000 mi
I have a P-1409 OBD-2 code , have not fixed yet . As well as a # 2 Misfire , oil in #2 Spark Plug