Perhaps a clogged fuel filter.
i work at a transmission shop i see these all the time it is an oxygen sensor. they can be expensive so be prepared
Check your Plugs and coils
I have a 2001 Focus with 209,000 miles and it is still running well.
all controlled by computer,see dealer for diagnostics
Could be sucking air into intake.
If you are getting a Lean code then it is probably being caused by the intake plennum gaskets. This is a common problem on the Windstar. The fix is relatively easy.
running lean. too many possibilities to narrow down
It will tell you on the stick, either "check hot" or "check cold", running or not.
That code is telling you that bank two is running too lean. For some reason the fuel mixture is too lean. Possibly an o2 sensor is malfunctioning.
Check the spark plugs and wires Do a compression test
sounds like the motor is running lean, not enough fuel.
There is a known problem with the 3.8 engines in 1999-2003 Windstars.See "Related Questions" belowAnswerI was just told today that my 2000 Ford Windstar is running lean, too. He said it's most likely a vacuum seal problem so i was told to change my PVC valve and my plenum gasket