I have the P0401 trouble code for my 2001 mustang
convertible. It has the 3.8 v-6. I went to auto zone and purchased the DPFE sensor. Have the Haynes manual and I could not, and neither could the Auto Zone employee, find the DPFE sensor anywhere on the engine. The haynes manual shows it on the driver side of the engine block in plain view. We followed all of the tubing and vacuum hoses and cannot find it. Where could it be located? Any help or pictures would be greatly appreciated. The car has 102,000 miles on it and this is the first time the chek engine light has ever come on. I don't know if this is a California
car and might be different from regular mustangs. I have read on other forums how easy it is to change the sensor. I just ned to find it. Thanks.