Yesterday, 1/9/07 I asked a question but I forgot to put in that it was a Ford Winstar, 2002 with 3.8 ltr engine.
My interest is this: Bank to lean P171 & Bank to lean P174
Seems like it is comon to both sides of this V6.
What area should I be looking into?
I deleted the MIL lamp and so far in 100 miles, it never came back on. That is so far.
I have 140,000 on it now and I am not sure if any of the emmision sensors have been replaced.
Any help of your knowledge would be appreceiated.
Everything check out so far until I bought a code scanner.
Wednesday, January 10th, 2007 AT 4:23 PM