The Fix Of The Week 04/30/2020
Every week, Identifix finds their favorite fixes submitted by our users and shares them in the “Fix of The Week.”
Our Favorite Fix This Week:
2015 Chrysler 200 3.6 V6
Check engine light is on in 2015 Chrysler 200 3.6 V6, and there is no defined drivability issue.
The engine light of the customer’s vehicle was on, but there was no defined drivability issue. The diagnostic trouble code displayed P0174 Bank 2 Lean Air Fuel Mixture, so with the scan tool installed, I turned the key on and looked at both upstream 02 sensor voltages. Both sensors should read around 5 volts (02 heaters off), but I found the Bank 2 sensor only read 1 volt, so I disconnected the sensor from the harness to see if the voltage returned to 5 volts, but it stayed at 1.
At that point I pulled the pin lock out of the connector on the harness side and discovered water. I determined the AC line was dripping condensation into the connector and corroding it. To correct this, I installed a new 02 sensor pigtail, cleared the error code, and performed a fuel adaptive reset.