bank 1 is the side of motor near the firewall that's where the #1 plug is
firewall #1-----#2-----#3 ( Bank 1 ) #4-----#5-----#6 ( Bank 2 ) front of Ford Windstar > driver
In a 2001 Ford Windstar : firewall 1-----2-----3 ( Bank 1 ) 4-----5-----6 ( Bank 2 ) front of vehicle > driver
firewall #1------#2------#3 cylinders ( BANK 1 ) #4------#5------#6 cylinders ( BANK 2 ) front of Ford Windstar
Engine cylinder numbering : firewall #1-----#2-----#3 ( bank 1 ) #4-----#5-----#6 ( bank 2 ) front of Ford Windstar
It is the upstream(before catalytic converter) oxygen sensor on the exaust that comes off the front engine bank.
On a 2000 Ford Windstar ( 3.0 L and 3.8 L , V6 engines ) firewall 1-----2-----3 ( bank 1 ) 4-----5-----6 ( bank 2 ) front of vehicle > driver
On a 2003 Ford Windstar , 3.8 liter V6 engine : firewall 1-----2-----3 ( Bank 1 ) 4-----5-----6 ( Bank 2 ) front of vehicle > driver
On a 1998 Ford Windstar ( 3.0 and 3.8 ) firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
A 1998 Ford Windstar has the Electronic Distributorless Ignition System ( EDIS ) so there is no distributor . It uses ( 1 ) coil pack that has ( 6 towers ) for the spark plug wires
Where are the Bank 1 Sensor 1 oxygen sensor on a 1998 ford explorer?
Bank 1 is the passenger side of your 4.0 liter V6 in a 1998 Ford Ranger
On a 2003 Ford Windstar : firewall 1----2----3 ( Bank 1 ) 4----5----6 ( Bank 2 ) front of vehicle > driver