DPFE was reporting a P0401 code and replaced it and ran for a couple of months w/o the code but then one morning it came back on. Drove it for months until I had time and warmer weather, when I pulled it off, I found water drops out which I could imagine would be the cause off the insufficient airflow code from the sensor. Took the water out and put back the same sensor, of course the code came back after a week. Checking there was water back in there again - glad I didn’t put a new sensor in. Where do you think the water comes from? I drive 20-40 miles and make it to 60mph at least a quarter of the time - I’ve read short trips can cause condensation but I’m about 10 miles from anything.
BTW - I just change the hoses to the sensor with those nice looking ones with the red liner - much tighter fit than the hoses that I replaced the last time. At the truck’s old age, it could be anything I suppose. I have a new DPFE sensor sitting in the box but don’t want to put it in until the water issue is resolved, …unfortunately the truck needs to pass inspection within the month.
96’ Ranger 6cyl3.0l 180k great truck.
Thanks for your time and any feedback.
