Dakota p0171 p0174 taurus

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 ...

where did you get codes? whomever told you have told the meaning.
use google and search Jeep codes.

P1282 JEEP - Fuel Pump Relay Control Circuit Condition
P0171 JEEP - Fuel System 1/1 Lean
P0174 JEEP - Fuel System 2/1 Lean
P0306 JEEP - Cylinder 6 Misfire Fault Detected


OBDII Codes Engine Light Repair and Diagnostic Information AutoCodes com

P0300 - random misfire , P0171 & P0174 lean code's . All of this means you could have a bad vacuum leak ,low fuel pressure ,clogged fuel filter , Mass air flow sensor problem .
Ford 150 P0171 P0174 Trouble Codes vacuum leak water test
Low fuel pressure causing P0171 and P0174 trouble code

Smoke testing for codes P0171 P0174 - YouTube

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www.youtube.com/watch?v=kZsqEfP-5zM
Jan 18, 2011 - Uploaded by realfixesrealfast Smoke testing for codes P0171 P0174 .... I have a 1995 ford mustang gt 5.0 and it keeps having a Fault code 176 pop up. ....Ford Explorer P0174 code intake air leak check engine light by froggy - Duration: 16:11. by froggy ...

p0171 and p0174 are o2 sensors, There are 4 o2 sensors on a Taurus. 1 on each exhaust manifold, and 1 after each catalytic converter.
p1518 is vehicle speed, idle speed control----this means the idle air control needs fixed. you can take it off and clean carbon from it. do not push on end of air valve it will loose its adjustment. do not put in any liquid to clean, the best way is to clean end of valve with an old toothbrush or similar. also clean carbon from engine side where iac mounts. when clean put back on. you can use carb cleaner for end of valve, as for the 02 sensors, you have to find out which ones are bad first. or replace all thats up[ to you. you have to get a 02 sensor socket for 3/8 drive. then they just turn out. the best way to get them out is have the car warm.

P0171 - System too Lean (Bank 1)
P0174 - System too Lean (Bank 2)
P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction
I'm afraid I don't have enough info to tell you how to fix the P1451 but I'm certain it's the cause of the other two codes.

Please read thoroughly the explanation of these fault codes and the possible sources of the code at the links provided. But based on the fault codes I think you have a engine vacuum leak.

P0171 Jeep Fuel System 1 1 Lean


P0174 Jeep Fuel System 2 1 Lean

The P0420 code is a Catalytic converter efficiency code check the compression.Swap the #1 injector to a different location to see if the code follows.Test the coilpak. A cracked exhaust manifold is the most likely cause p0171 and 0174 Induction air leaks, vacuum or some kind fuel restriction, weak fuel pump, restricted fuel filter etc.You also could have an exhaust leak near the upstream o2 sensor. If youtake it in they will probably use smoke to find out where the leak is.

just tune up ur car periodicly, clean filter. clean ur sparkplug.

P0171 is system too lean bank 1, P0174 is too lean bank 2, and 302 is misfire bank 1. Look for vacuum leaks. If you don't find them, put a vacuum gage on it can check. The P0171 is almost always a vacuum leak. If not other possibilities are front O2 sensor is too old and should be replaced (if mileage is greater than 100k then replace). Try injector cleaner. Misfires are usually bad spark plugs, but could possibly be caused by insufficient fuel. I've never had a car of mine in bad enough shape to have that error.