Definition of error code P and P – System too Rich (Bank 1 and Bank 2) . Read emissions expert information and diagnostics for fault code P and. Diagnostic Trouble Code (DTC) P Fuel Trim System Too RichDiagnostic Trouble Code (DTC) P Fuel Trim System Too Rich – United Kingdom | BBA. The fact that it’s throwing that code means that it’s trying and unable to adjust sufficiently to keep the air/fuel ratio correct. 2 is easy to check-.

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Get an Estimate Find a Shop. Use a scantool and make sure the sensor is working first. Ignition misfires, like mechanical misfires, cause puffs of oxygen to keep hitting the Oxygen Sensors.

A worn or stuck wiper in the Throttle Position Sensor will tell the PCM that more power is being requested by the operator. You may find, however, since there was an extreme amount of fuel dumped into the system, the O2 I’m assuming this is your new sensor as well may have been damaged in the process.

Diagnostic Trouble Code (DTC) P0172 Fuel Trim System Too Rich

The car may not be able to pass a state vehicle inspection because of the P code setting the Check Engine Light. However, it should be noted that a “rich” running engine can also have little or no smell, since CO itself is odorless. Since the sensors will think the mixture is running lean, the PCM will add fuel to the mixture. So what should be added to the check p00172 is the following items in terms of difficulty.

I was told that the oxygen sensor, the cam sensor and the fuel cap could be the problem. The computer tried to compensate, but since resolution is impossible, it sets the code. How dtv Get a Louisiana Driver’s Permit s licensing program. A rich condition can also cause misfires from “overfueling” too much fuel for the Ignition L0172 to burnwhich puts raw fuel HCs into the atmosphere. Code P applies to Bank 1 and P applies to Bank 2. It is important to complete the entire diagnostic process p01722 diagnosing P If the p017 is about By VisitorFebruary 16, It must also be noted that the problem is because of the emission thresholds required, which is pretty complicated and the system needs to be affected by some disturbance so that the emission thresholds may be exceeded.


A Thermostat stuck in the open position can mechanically cause a code P, especially in cold climates. Some of the high performance 4-cylinder and straight 6-cylinder engines such as those in BMW and Lexus split the cylinders into groups of two or three and call them separate banks.

The ECU uses a number of instruments, such as the mass air flow sensor MAFoxygen sensors, and manifold absolute pressure MAP to monitor the air-fuel ratio of the engine. An inaccurate Coolant Temperature or Air Temperature Sensor can cause a rich condition because they will report that the engine is still cold, which will cause the PCM to keep the mixture rich long after the engine is at proper operating temperature.

System Too Rich Bank 1. While removed clean throttle body with approved cleaner. Veteran and Military Driver Laws and Benefits in Idaho The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the I have codes po, and pop up. Looking at the freeze frame first than performing a road test and capturing data is the best way to diagnose this problem.

Fast and easy Check Engine Light is on Inspection service at your home or office.

Got FIXD and found out it was a different issue. If other codes are present, they must be addressed first. Get back on the road. Often, as the vehicle’s engine wears, the PCM’s Fuel Map software inaccurately compensates for this condition.

The bad O2 readings are a symptom. This test is undertaken keeping in mind that a failure that can exceed the adaptive terms can be generated. The first step in this program is to obtain You can test the oxygens sensor to verify this is the fix. So now I am left with another task that is not listed. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair p01722 vehicle.


P0172 – Meaning, Causes, Symptoms, & Fixes

If you have a bank that is running too rich, which is unfortunately a very generalized condition, one or more of the following conditions must be true: How do I fix the P trouble code? Duane 22 years of experience.

If the fuel pressure regulator is stuck, it can cause a rich condition due to the high pressure. When you are driving behind a “rich” running car or truck, it can smell very bad, somewhat like dtcc eggs, and make you feel dizzy.

Diagnostic Trouble Code (DTC) P Fuel Trim System Too Rich – United Kingdom | BBA Reman

Shorted Fuel Injector windings can cause the injectors to spray too much fuel, dtcc a rich condition. Now you have to find the root cause of the problem. Guaranteed Repairs Rest easy knowing you’re covered by a local warranty. When will DTC set? Ideally, the Long Term Fuel Trim should be close to 1 to 2 percent.

P and P – OBD-II Trouble Codes

An engine needs to have at least 17 to 18 inches of vacuum in order to run properly. Lucas 18 years of experience. However, several manufacturers do use the same suppliers for some things like O2 sensors Bosch is a likely candidate for those. Some people said that it would be a faulty oxygen sensor.

Sign up using Facebook. The best air-fuel ratio modernly known to man is Was this cool or helpful? P Determining the dtcc good and the limit bad for each kind of failure therefore becomes mandatory.

P00172 keep the engine running properly, the powertrain control module PCM tries to compensate for the rich condition by injecting less fuel to the mixture in an effort to maintain the proper