Bad fuel pressure, is reason for bad mpg?

[RonD]

Sorry forgot the part number question

There will be 2 or 3 part numbers
1985-2011 Rangers all used narrow band heated O2s, or "regular O2s", so the O2s sensors are all the same type

The different parts numbers refer to the length of wires attached to the O2 sensor so its long enough to reach the connector on vehicles wiring harness

Just FYI
In the mid-late 2000's car makers started using "Wide-band" O2 sensors, earlier Rangers never used those, the 2019/20 Rangers do

 

[Pauls14]

Sorry forgot the part number question

There will be 2 or 3 part numbers
1985-2011 Rangers all used narrow band heated O2s, or "regular O2s", so the O2s sensors are all the same type

The different parts numbers refer to the length of wires attached to the O2 sensor so its long enough to reach the connector on vehicles wiring harness

Just FYI
In the mid-late 2000's car makers started using "Wide-band" O2 sensors, earlier Rangers never used those, the 2019/20 Rangers do

Can I use this?

 

[Broosedamoose]

Upstream Right: Bosch 15717 $21.79
Upstream Left: Bosch 15716 $21.79
Downstream Bosch: 15719 $22.79
These prices and part numbers are from Rock Auto. I just did mine a month ago.

 

[Pauls14]

Upstream Right: Bosch 15717 $21.79
Upstream Left: Bosch 15716 $21.79
Downstream Bosch: 15719 $22.79
These prices and part numbers are from Rock Auto. I just did mine a month ago.

I appreciate

 

[Pauls14]

Hello everybody. I used cleaner for fuel injectors, changed downstream o2 and up left. Right sensor I can’t unscrew, rips off the nut( (Tried heat it, but still can’t unscrew). Also very little space for screw wrench. Will take off exhaust in spring or summer and unscrew with more space on the ground) But I hope now MPG will be better. Will write when see changes)

 

[Dirtman]

These things are really good for getting off the o2 sensor in tight spots.

 

[Pauls14]

These things are really good for getting off the o2 sensor in tight spots.

View attachment 55449

I ordered same, but doesn’t work(
Maybe very old o2 sensor.