Nissan P1168 Code: Everything You Need to Know

Have you ever had that disgusting moment where you experience the P1168 code on your vehicle? It is a prevalent error in many vehicles, with different Infiniti and Nissan models being among the top. P1148 occurs when there are issues with the closed-loop control functioning of the Bank 1 A/F sensor. I would advise you to procure the services of an experienced mechanic to know what causes these vehicle problems and develop a long-lasting solution. The information I have explained below will guide you better on this subject to help you know when it is time to call in the professionals.

How Do You Define P1168?

This is technical jargon that most Nissan owners do not understand. Nonetheless, it is not as complicated as they think. According to OBD2ProsNissan P1168 refers to an OBD-2 code telling you about all the issues related to your vehicle’s closed Loop Control Function Bank 1. There is an issue when there is a problem with the closed Loop Control Function of the Bank 1 A/F detector.

Failure to have such a code may put you in the dark regarding understanding some of the critical issues with your vehicle. The sensor’s temperature plays a material role in its functioning. The only way to deal with such an incredible issue is by ensuring you have proper adjustments and regulations to the fuel and air mixture. From our observation, an adequate air-to-fuel ratio puts you close to a more feasible stoichiometric.

Which are the Critical Causes of P1168 in Nissan Models?

I wouldn’t be surprised to learn you may not know of some critical causes of the Nissan P1168 error code. Fortunately, we have obtained this incredible information to help you understand some of these causes. They include:

A Faulty Air-to-Fuel Ratio Sensor

Maintaining proper air and fuel levels in your vehicle is not a thing to take for granted. According to Car Treatments, the appropriate ratio should be 1:14.7. This figure means 14.7 grams of air are required to burn one gram of fuel. Your mechanic can educate more on this matter, considering they possess the necessary information and knowledge.

Contaminated Air-to-Fuel Ratio Sensor

Sometimes, the A/F sensor may still be functional but is contaminated. Any contaminated car part in your machine will not function as intended. A dirty sensor will lead to a Nissan P1168 code error. Some top sensor contaminants include internal coolant leaks from the gasket or cracked cylinder heads and phosphorous if the car’s engine burns oil.

Exhaust Leaks

A vehicle’s exhaust pipe plays a material role in leaving away smoke, unburned fuels, and other wastes, just like a human ‘exhaust system’! A part of this exhaust system passes through the vehicle’s air-to-fuel ratio sensor. Any leaks on that part will trigger the Nissan P1168 error code.

Let’s Dive Deeper into the Nissan P1168 Error Code’s Symptoms

There are several ways to identify when your car is going through a rough patch regarding air and fuel. I have analyzed these causes to help you get a clearer glimpse of what to be on the lookout for.

Engine Light Coming On

The main reason your car has an engine light is to indicate any malfunction. This indicator can illuminate for various reasons, one being a faulty air-to-fuel ratio sensor. A reliable mechanic will identify the issue and know how to solve it before it worsens.

High Fuel Consumption

The Nissan P1168 error code can cause your car to burn more gasoline than the standard rate. You can identify these symptoms by checking the changes in your visit to a gas station and how much fuel the vehicle uses per mile. This is not the best time to spend hundreds of dollars on fueling your auto due to an issue that a professional mechanic can fix.

A Stumbling Engine

A vehicle’s engine should not stumble, shake or have some low moments whenever you accelerate. Such instances could result from a faulty A/F ratio sensor.

Challenges Starting a Hot Engine

You have been on the road for a while and decided to stop by a café for a cup of coffee. This means your car’s engine is heated up from the time it has been active. Nevertheless, that should not cause it not to start normally. Experiencing hardships and impossibilities when starting a hot engine could result from the P1168 error code. Consult your mechanic for the best assistance.

An Unanticipated Power Loss

Your vehicle may lose power, especially when the battery is down. The only solution here is recharging the battery to power your car. Sometimes, you may experience sudden power losses even when the battery is fully charged. These are some instances when considering having the machine checked for this irritating code error.

What Can You Do To Repair This Issue?

Replace the Sensor

You guessed it right! The first thing to consider in fixing the P1168 error code is replacing the vehicle’s air-to-fuel ratio sensor. Many car owners do not even know where this part is located. A professional mechanic will help you purchase the right product and fix it on your car to solve the error code.

Repair the Connectors

Flawed and damaged connectors can cause a false alarm regarding the Nissan P1168 code error. I advise you to have the car checked and the bad or faulty connectors repaired. However, replacement should be an option if the connectors are beyond repair.

Repair Exhaust Leaks

A leaking exhaust may present an issue to your vehicle, not to mention the disgusting noise it produces. Therefore, if you want to fix your Nissan P1168 code error, you should check its exhaust first. Repair the leaks or replace the entire unit if the damage is irreparable.

Car problems can cost substantial amounts, especially when you let them worsen. The problem discussed above is a diagnostic issue related to the closed-loop control function of the Bank 1 air-to-filter ratio sensor. The issue’s leading causes and remedies are explained above to guide you better on what to check and how to fix this error code.

D Conroy

Meet our senior writer and content manager of Automasterx. He has worked in several mechanical garages and mastered different vehicle diagnoses and parts repair. He never stops until finding out the ultimate solutions for any vehicle fault code. However, ensuring the only solid solutions for each vehicle malfunction is his core part of the duty, alongside analyzing fault codes and signals.

Similar Posts