What does obd 1 code 25 and 26 mean?

Question edited for clarity. It is P-Zero 0, not P-oh O.
Please always include 'year make model' first 3 words, or it it is difficult to answer and some vehicles are slightly different or more precise and will show known issues.

P0174 - OBD-II Trouble Code Fuel System Too Lean (Bank 2)

https://repairpal.com > obd-ii-code-p0174
When a vehicle has the fault code P0174, it means that computer can no longer automatically adjust the mixture between air and fuel. Code P0174 applies to V ...

P0174 OBD-II Trouble Code: System Too Lean (Bank 2)

https://www.yourmechanic.com > Articles
Code P0174 indicates that there is a lean condition detected by the Engine Control Module (ECM). A lean condition will be created if there is too much air, and ...

P0151 Code - What Does It Mean & How To Fix It - OBD2PROS

https://obd2pros.com > dtc-codes > p0151
A P0151 code is caused by an ECM (Engine Control Module) receiving a signal indicating the O2 sensor for bank 2 sensor 1 has failed to increase the voltage ...

Code P0171 - System Too Lean: Symptoms, causes, common ...

https://www.samarins.com > diagnose > p0171
Jul 10, 2021 - The OBDII trouble code P0171 - System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too ...

codes are OBDll and are available on line free. Every scan tool comes with booklet with codes in it. If the person scanning does not have booklet do not waste your time.

A P0354 code means that the ignition coil or coils are not functioning properly and that there is an electrical problem with them. The ignition coils are responsible for properly igniting the air-fuel mixture in the engine's combustion chambers.

OBD-II Code P0455 is defined as a Evaporative System Malfunction, Gross Leak

No one can diagnose your car without having it.

https://www.yourmechanic.com/article/p0354-obd-ii-trouble-code-ignition-coil-d-primary-secondary-circuit-malfunction-by-valerie-johnston

https://www.obd-codes.com/p0455

https://repairpal.com/obd-ii-code-chart

https://www.obd-codes.com/trouble_codes/

It is sensor.
Censor means an official who examines material that is about to be released, such as books, movies, news, and art, and suppresses any parts that are considered obscene, politically unacceptable, or a threat to security
https://www.yourmechanic.com/article/p0154-obd-ii-trouble-code-o2-sensor-circuit-no-activity-detected-bank-2-sensor-1-by-jamahl-walker
https://repairpal.com/obd-ii-code-p0154

Engine Light ?

You mean OBD 2 MIL Lamp !

1/ Read your owners manual

2/ Check for codes

3/ DO NOT ---CLEAR or turn off anything

You will loose data needed to diagnose your codes
& resolve the problems your vehicle may have

Take to a shop

PO138--Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)

Next time Type: OBD PO 138 & read up

That is how you find codes

Now before you throw parts at the unknown, google &
study obd 2 systems & oxygen sensors

You will be very suprised how much there is to learn
about cars

Codes have to be diagnosed & parts component tested
BEFORE any parts get replaced

Have to find a problem first & have to test to find a failed
part,or why would you change one

The idea is to study & learn things,not take the short way out,
in hope of a quick fix,it will work a couple times with codes,
then your back here or at a shop

Using Google-- is how you look up OBD Codes

Problems & some solutions

Type:OBD PO102

Codes DO NOT mean you replace parts

They have nothing to do with parts
UNTIL the vehicle is properly diagnosed
& a PROBLEM IS FOUND

this means transmission range sensor circuit is not communicating correct data to the engine control module (ECM)
P0706 OBD II Trouble Code Transmission Range Sensor Circuit Range... , this link will explain your option's

Always use google to look up OBD Codes, if you
have no vehicle reference material
A code does not mean any parts get replaced until
you diagnose the reason for the check light & codes

this code does not appear in the official chrysler codes or the universal OBD codes so contact the code reader manufacturers

your car needs tune up service