2004 escape codes 141 and 161 replaced downstream o2 sensors still have recurring codes any suggestions

2004 escape codes 141 and 161 replaced downstream o2 sensors still have recurring codes any suggestions 1 Answer

So if there are (4) O2 Sensors on a 2000 Ford Expedition 4.6, then how many upstream and how many downstream sensors are there? 5 Answers

o2 Sensors and which ones, Upstream or downstream?

replaced 2 o2 sensors. The car started, butwhen I hit he brake the car died. Can not get it stsarted. Took the battery to auto zone and had it tested. Its good. Any suggestions? 2 Answers

went to auto zone, service engine light was on. They told me it was 2-o2 sensors. Replaced them, engine light was still on. Disconnected the battery, waited 15 minutes, then reattached cables, car s...

Does my 2001 Windstar have both upstream and downstream o2 sensors? 3 Answers

I have cleaned the EGR valve, still get vacuum at the EGR solenoid, threw p0171 and p0174.

2003 Windstar> The check engine light went on, I replaced the two O2 senors, codes came back 2 Answers

I replaced the two O2 senors, codes 171 and 174 and the EGR valve.. I drove it 85 miles and it still read not ready for inspection. I drove it another 25 miles as per the mechanic and the light came...