Help with Service Engine Light (Codes inside)
2003 Expedition (100k miles). Just replaced the PCV hose last month due to a hole. I replaced 2 O2 sensors too............. Service Engine light came on with a whold bunch of codes
P0443: EVAP Emission Control system purge: Valve C Fault P0446: EVAP Emsissio Control system Vent Circuit Malfunction P0135: 02 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1) P0155: 02 Sesnsor Heater Circuit Malfunction (Bank 2, Sensor 1) P2195: Sensor Stuck Lean (Bank 1, Sensor 1) P2196: Sensor Stuck Rich (Bank 1, Sensor 1) P2197: Sensor Stuck Lean (Bank 2, Sensor 1) P0403: EGR Flow Circuit Malfunction Also, The AC is blowing warm air only. not sure if that is related to something above, or it just needs a re-charge for refigerant. |
There are three seperate groups of faults.
1. Evap. 2. Ox sensors. 3. EGR. My feeling is; did you use the right parts for the OX sensors? The ox sensors have a heating problem. Wiring or the wrong parts? Did you disturb something around the Evap system? Did you disturb something in the vacuum lines that operate the EVR? Better take a close look at everything. |
Thanks for the reply,
I did use the right O2 sensors. The passenger side one was a pain in the butt though. I could hardly get to it. Maybe it loosened up (due to not tighening it enough.......it was really hard to tighten due to only being able to turn the wrench a 1/4 at a time) or possibly the wires melted due to touching the exhaust It's been running for a month just fine since I replaced the sensors though. Where is the EVAP system located ???? I checked for loose wires and vacuum leaks but didn't see anything. I don't think anything has been distrubed either unless it came loose on its own. |
WOW!! First time I seen this .. Sorry no help. I don't know how you the passenger side O2 off and on - tried and tried , No dice!! , just glad it wasn't bad lol..
Good Luck |
All times are GMT -4. The time now is 05:46 PM. |
© 2024 MH Sub I, LLC dba Internet Brands