2000 Taurus DPFE sensor
I have been dealing with a minor annoyance with my 2000 wagon. The history behind it is I had the check engine light go on itermittantly and it ran a bit rough around 1500 rpm's. I found info somewhere on the web suggesting a DPFE sensor replacement. Did that with good results...temporarily. I had ripped the old sensor apart and found water in the smaller of the two tubes (labled REF I think). Well the rough engine returned so I checked the sensor and found water in it again. I dried it and reinstalled it and now it runs fine. My question is where is the water coming from? Is it normal? Do I have another problem (besides wordy postings) that this indicates?
Thanks for any help,