In the exaust pipe down past the manifold
Yes there is a Map sensor.
Bank 1 is the passenger side of the engine in your E-150 Sensor 1 is between the engine and the catalytic converter ( upstream sensor )
On a 2002 Ford E-150 : Bank 1 is the passenger side of the engine ( V6 and V8 engines ) Sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter ( upstream sensor )
center manifold for a 1999 ford van
on the right side of the engine
Since oxygen sensors are always in the exhaust system, that's where you'd find it. There are at least two and as many as four on any late model vehicle with a V-8.
I have a '95 E150 and a '96 E250, both are 4.9 straight 6 cyl. One has 1 O2 sensor and the other has 2, one on each half of the exhayst manifold. I believe the 96 has 2. but it is an E250, not sure about the '96 E150.
There is only one coolant temperature sensor on a 1999 Ford E150 6 cylinder. The sensor is on the front of the engine just below the valve cover.
Where are the Bank 1 Sensor 1 oxygen sensor on a 1998 ford explorer?
Spark plugs & wires, ignition rotor & distributor cap,air filter and for all there worth I usually replace the oxygen sensor at the same time.
The 1981 Ford Crown Victoria does not have an Oxygen sensor.
There are four, if it's a V-8.