My fuel trims have been off, at first I was thinking vacuum leak but thats not the case, everything else is new, injectors were redone. I have no idea about the O2 sensors except they dont look too old?
I was able to get this yesterday.

 

OxSensors over 100kMiles\10years old definitely need to be replaced with new.
Assuming your 1993 truck has standard 4wire OxSensors with standard Ford round plug?
Original maker Bosch# 15719 with 24"Cable & 4pinFord Plugworks for all locations;
the extra long cable can be neatly tucked away from Hot\Moving parts with ZipTies.

 

its a 2001 I'll look for Bosch im thinking what's why bank 1 and 2 are off so much?

 

+ or - 8% is OK for STFT
Yours are -1.5 and +0.7 so you are fine

LTFT is a little low, -9 and -10

O2 sensor 2 is low, 0.68v, should be 0.75-0.85v, this is the sensor after the Cat converters, downstream O2

Change O2 sensor after Cat(sensor 2) for sure, but changing all 3 would be best

All 3 are the same kind of O2 sensor, only difference is the length of the wire lead that comes attached to each

 

I just checked all my O2sensors. they all to appear to be the same length, they are all short maybe 8in? upstream and downstream

 

You are correct, the wires on all of them is the same length. I posted a write up on the O2 sensors with part numbers a while back, search for it under my name it should come up.. Good Luck and let us know how it turns out.

 

From what I understand the O2 Sensors are all the same, just the wire length is the difference. Why dont I just get 3 of one size? Is there a difference between upstream and downstream ?

 

Yep, at least for older 4WireNarrowBand OxSensors, NOT newer WideBand.
KeepItSimpleStupid\KISS, order three Bosch# 15719 With 24i00 Cable;
these work to replace any Ford 4Wire OxSensor on any Year\Model, Up\DownStream;
allows routing cable well away from Hot\MovingParts, then ZipTie extra length as needed.
Why haven't Bosch & other OxSensor makers simplified their factory+inventory with just this model?

 

Rangers, 2011 and older all used the same narrow band O2
Upstream or downstream doesn't matter they are interchangable
So you can swap them around so see if an O2 sensor code follows the sensor to new location(bad O2) or stays at the location, engine problem at that location

 

yes, thats too easy, I've found that where you look sometimes they really dont give your the real information you need. they tell you it will fit. well im thinking of getting 3 #15664. all mine are short, I'll ck one more time but im pretty sure it will.. thats for a 2001 B3000 should be the same for a Ranger 3.0 I think?